Moonlight Gourami Care Guide – Tank Setup, Feeding and Breeding
Quick summary
The Moonlight Gourami is a peaceful, hardy fish suited to aquarists who already have some experience with tropical community tanks and can provide a well-planted 200 litre or larger aquarium. It’s a good fit if you want a calm, attractive centrepiece fish for a spacious community setup, but it’s not ideal for smaller tanks or complete beginners still learning water quality management.
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In this guide:
- Introduction
- Quick Stats
- Appearance
- Natural Habitat
- Tank Size and Setup
- Water Parameters
- Filtration and Equipment
- Diet and Feeding
- Behaviour and Temperament
- Tank Mates
- Breeding
- Common Diseases
- FAQs
Introduction
The Moonlight Gourami (Trichogaster microlepis) is one of the most elegant and understated labyrinth fish available in the freshwater aquarium hobby. Named for its ethereal, silvery-green iridescence that calls to mind moonlight reflecting off still water, this species has been a quiet favourite among experienced aquarists for decades. Originating from the lowland wetlands, floodplains, and sluggish waterways of Southeast Asia – specifically Cambodia, Thailand, and Vietnam – the Moonlight Gourami offers a compelling combination of beauty, peaceful temperament, and manageable care requirements that makes it an outstanding centrepiece fish for medium to large community aquariums.
Unlike some of its more boisterous relatives in the gourami family, the Moonlight Gourami is notably calm and reserved. It rarely engages in the territorial squabbling that can make species such as the Three-Spot Gourami or the Paradise Fish problematic in community settings. This gentle nature, paired with its generous adult size of around 13 to 15 centimetres, allows it to coexist comfortably with a wide range of peaceful tank mates without being bullied or becoming a bully itself. As a labyrinth fish, it possesses the specialised labyrinth organ that enables it to breathe atmospheric air directly from the water’s surface, an adaptation that allows it to thrive in oxygen-poor environments that would challenge many other species.
In the wild, Moonlight Gouramis inhabit densely vegetated, slow-moving bodies of water where tannin-stained conditions and soft, acidic water are the norm. Replicating these conditions in the aquarium is straightforward, and the species is generally forgiving of minor fluctuations in water chemistry, making it accessible to aquarists with a reasonable level of experience. While not quite as beginner-friendly as the Dwarf Gourami, the Moonlight Gourami is well within the capabilities of any hobbyist who has successfully maintained a tropical community tank and understands the basics of water quality management.
This guide covers everything you need to know to keep Moonlight Gouramis healthy and thriving in captivity, from tank setup and water parameters to diet, breeding, and compatible tank mates.
Quick Stats
| Scientific name | Trichogaster microlepis |
| Common names | Moonlight Gourami, Moonbeam Gourami |
| Family | Osphronemidae |
| Origin | Cambodia, Thailand, Vietnam |
| Adult size | 13-15 cm (5-6 inches) |
| Lifespan | 4-6 years |
| Difficulty | Moderate |
| Breeding difficulty | Moderate |
| Temperature | 25-30 °C |
| pH range | 6.0-7.5 |
| General hardness (GH) | 2-15 dGH |
| Carbonate hardness (KH) | 2-8 dKH |
| Minimum tank size | 200 litres |
| Conservation status | Least Concern |
Appearance
The Moonlight Gourami is a strikingly beautiful fish whose appeal lies in subtlety rather than bold coloration. Its body is laterally compressed and oval-shaped, typical of the gourami family, with a gently sloping forehead and a slightly concave profile along the head. The overall body colour is a uniform silvery-green that shimmers with a delicate iridescence under aquarium lighting. This moonlit sheen is created by the species’ exceptionally small scales – the Latin epithet “microlepis” literally translates to “small scales” – which produce a smooth, almost metallic finish across the entire body. When light catches the fish at the right angle, the iridescence can shift from cool silver to a soft greenish-blue, lending the fish an almost otherworldly quality.
One of the most distinctive features of the Moonlight Gourami is its pelvic fins, which are elongated and thread-like, as is characteristic of many gouramis. In this species, the pelvic fins carry a subtle but attractive reddish-orange tint, providing a warm accent against the cool silver of the body. This colouration tends to be more vivid in males, particularly when they are in breeding condition. The pectoral fins are transparent, while the dorsal, anal, and caudal fins are a translucent grey-green that blends seamlessly with the body.
The eye of the Moonlight Gourami is relatively large and is typically reddish-orange in colour, echoing the tint found on the pelvic fins. This eye colour can intensify or fade somewhat depending on the fish’s mood, health, and the conditions of its environment. A healthy specimen kept in well-maintained water with appropriate lighting will display a noticeably brighter eye colour than one that is stressed or unwell.
Sexual dimorphism is present but subtle. Males tend to be slightly more slender than females and may display a more pointed dorsal fin. The pelvic fins of males are typically a deeper orange-red compared to the paler, more yellowish pelvic fins of females. During breeding season, the male’s colours intensify noticeably. Females, when gravid, will appear rounder in the belly region. Juvenile Moonlight Gouramis are less iridescent and may appear more plainly silver, developing their full sheen as they mature over the first year of life.
The Moonlight Gourami lacks the spots, bars, or stripes found on many other gourami species, giving it a clean, unbroken appearance that many aquarists find particularly appealing. This uniform coloration also makes it an excellent choice for planted aquariums, where its silvery body contrasts beautifully against a lush green backdrop.
Natural Habitat
In the wild, the Moonlight Gourami is found across a broad range of lowland freshwater habitats in mainland Southeast Asia, with populations documented in Cambodia, Thailand, and Vietnam. Its preferred habitats include slow-moving rivers, shallow lakes, marshes, swamps, and the seasonally flooded plains that characterise much of the Mekong River basin. These environments are typically warm, still or very gently flowing, and heavily vegetated with both submerged and emergent aquatic plants.
The water in these habitats is often soft and slightly acidic, frequently stained brown by the decomposition of fallen leaves, wood, and other organic matter. Dissolved tannins reduce light penetration and create the dimly lit conditions under which the Moonlight Gourami’s iridescent scales are most visible. The substrate is usually composed of mud, silt, or fine sand, and the bottom is often covered with a thick layer of leaf litter.
Vegetation is a critical component of the Moonlight Gourami’s natural habitat. Dense stands of aquatic plants provide shelter from predators, foraging grounds for small invertebrates, and the calm surface conditions needed for bubble nest construction during breeding. Floating plants are particularly common in these environments, creating shaded areas that the fish favour. Species such as water hyacinth, duckweed, and various Cryptocoryne species are commonly found alongside Moonlight Gouramis in the wild.
Seasonally, the Moonlight Gourami’s habitat undergoes dramatic changes. During the monsoon season, floodwaters expand the available habitat enormously, allowing the fish to disperse across vast flooded areas where they can find abundant food and breeding sites. As waters recede during the dry season, populations become concentrated in deeper pools and permanent water bodies. This seasonal cycle has given the species a degree of adaptability to changing water conditions, which translates well to captive care.
The Moonlight Gourami is also found in rice paddies and irrigation channels in some parts of its range, and it is caught both for the aquarium trade and as a food fish in local markets. Despite these pressures, the species remains relatively common across its natural range and is currently assessed as Least Concern by the IUCN.
Tank Size and Setup
Given its adult size of 13 to 15 centimetres and its preference for spacious, calm environments, the Moonlight Gourami requires a minimum tank size of 200 litres for a single specimen or a pair. If you intend to keep a small group or house the species in a community setting with other fish, a tank of 300 litres or more is strongly recommended. Larger tanks not only provide more swimming space but also help to dilute waste and maintain more stable water parameters, both of which contribute to the long-term health of this species.
The tank should be set up to replicate the Moonlight Gourami’s natural habitat as closely as practical. A dark, fine-grained substrate such as sand or smooth gravel works well and mirrors the muddy bottoms of Southeast Asian waterways. Dark substrates also have the advantage of showing off the fish’s silvery iridescence to best effect. Avoid sharp or coarse substrates that could injure the fish if it ventures near the bottom.
Planting is arguably the most important aspect of the Moonlight Gourami’s tank setup. Dense plantings of both rooted and floating species are strongly recommended. Rooted plants such as Vallisneria, Java Fern, Cryptocoryne species, and Amazon Swords provide mid-level cover and break up sightlines, helping the fish to feel secure. Floating plants are particularly important, as they dim the lighting, provide surface cover, and create the calm water surface conditions that the species prefers. Good choices include Amazon Frogbit, Salvinia, Water Lettuce, and Duckweed. If you use floating plants, ensure that a portion of the water surface remains clear to allow the fish easy access to atmospheric air, which it needs to breathe via its labyrinth organ.
Driftwood, bogwood, and dried Indian Almond leaves (Catappa leaves) make excellent additions to the tank. They provide additional shelter, contribute to a natural aesthetic, and release tannins that gently soften and acidify the water – conditions that the Moonlight Gourami appreciates. Smooth rocks and terracotta pots can also be used to create hiding spots, though the species does not typically seek out caves or crevices in the way that some bottom-dwelling fish do.
Lighting should be subdued. The Moonlight Gourami is not a species that thrives under intense illumination; it tends to become shy and stressed in brightly lit tanks. If you keep live plants that require higher light levels, use floating plants to create shaded zones where the gourami can retreat. Alternatively, choose low-light-tolerant plant species that do not require strong illumination.
A tight-fitting lid or cover glass is essential. Like all labyrinth fish, the Moonlight Gourami regularly visits the water surface to gulp air, and it can be a surprisingly capable jumper if startled. The lid also helps to maintain a layer of warm, humid air above the water surface, which is important for the health of the labyrinth organ. A significant temperature difference between the water and the air above it can cause damage to the labyrinth organ, so keeping the tank covered is not optional.
Water flow should be kept gentle. The Moonlight Gourami comes from still or very slowly moving waters and does not appreciate strong currents. Position filter outlets to minimise turbulence, or use a spray bar to diffuse the flow. Excessive water movement will stress the fish and can interfere with bubble nest construction during breeding.
Water Parameters
The Moonlight Gourami is reasonably adaptable when it comes to water chemistry, but it does best in soft to moderately hard, slightly acidic to neutral water that reflects its natural habitat. Consistency is more important than hitting an exact number; sudden swings in pH, hardness, or temperature are far more dangerous than water that is slightly outside the ideal range but remains stable.
| Temperature | 25-30 °C |
| pH | 6.0-7.5 |
| General hardness (GH) | 2-15 dGH |
| Carbonate hardness (KH) | 2-8 dKH |
| Ammonia | 0 ppm |
| Nitrite | 0 ppm |
| Nitrate | Below 20 ppm |
Temperature is one of the more critical parameters for this species. The Moonlight Gourami prefers warmer water than many tropical community fish, with an ideal range of 26-28 °C for general maintenance. Temperatures at the higher end of the range (28-30 °C) can be used to stimulate breeding behaviour. Avoid letting the temperature drop below 25 °C for extended periods, as this can suppress the immune system and make the fish more susceptible to disease.
Regular water changes of 20-25% weekly are recommended to keep nitrate levels low and maintain overall water quality. When performing water changes, ensure that the replacement water is closely matched to the tank temperature and has been treated with a suitable dechlorinator. The addition of Indian Almond leaves, peat extract, or a commercial blackwater conditioner can help to create the soft, tannin-rich conditions that the species appreciates, though these are optional rather than essential.
Filtration and Equipment
Filtration for a Moonlight Gourami tank should prioritise biological and mechanical filtration while maintaining gentle water flow. An external canister filter is the best choice for tanks of 200 litres and above, as these units offer excellent filtration capacity with the ability to control output flow via a spray bar or lily pipe. Internal power filters and hang-on-back filters can also work well, provided the flow rate is not excessive. If the filter creates too much surface agitation, baffle the outlet with a sponge or redirect the flow against the tank glass to reduce turbulence.
A reliable heater is essential. Given the Moonlight Gourami’s preference for warm water (25-30 °C), choose a heater rated appropriately for your tank volume and consider using two smaller heaters rather than one large unit in tanks over 300 litres. This approach provides redundancy in case one heater fails and distributes heat more evenly throughout the aquarium. A submersible heater with an accurate thermostat is preferable, and an external thermometer should be used to verify the temperature independently.
As mentioned in the tank setup section, a tight-fitting lid or cover glass is a critical piece of equipment. It prevents the fish from jumping out and maintains a warm, humid air layer above the water surface. This warm air cushion is vital for the health of the labyrinth organ; breathing cold air can cause internal damage and respiratory problems.
An air stone or air pump is not strictly necessary and may even be counterproductive if it creates too much surface disturbance. The Moonlight Gourami does not rely on dissolved oxygen to the same extent as non-labyrinth fish, as it can supplement its oxygen intake by breathing air directly. If you do use an air stone for the benefit of other tank inhabitants, place it away from the gourami’s preferred resting areas and keep the flow rate low.
Lighting, as noted previously, should be moderate to subdued. An adjustable LED fixture that allows you to dim the output or programme a gradual sunrise/sunset cycle is ideal. This not only suits the Moonlight Gourami but also reduces algae growth if combined with appropriate floating plant cover.
Diet and Feeding
The Moonlight Gourami is an omnivore with a preference for small invertebrates, insect larvae, and plant matter. In the wild, it feeds on a varied diet of zooplankton, mosquito larvae, small crustaceans, algae, and soft plant material. In captivity, this dietary flexibility makes it straightforward to feed, though a varied diet is important for maintaining good health, vibrant colouration, and strong immune function.
A high-quality flake or pellet food formulated for tropical omnivores should form the staple of the diet. Choose a product with a good balance of animal and plant-based proteins. Slow-sinking granules or small pellets are often more readily accepted than large floating pellets, as the Moonlight Gourami tends to feed in the mid-water column and at the surface.
Supplement the staple diet regularly with live or frozen foods. Bloodworm, daphnia, brine shrimp, mosquito larvae, and tubifex worms are all eagerly accepted and provide essential nutrients that processed foods alone may not deliver. Live foods are particularly valuable for conditioning breeding pairs. Blanched vegetables such as courgette (zucchini), spinach, shelled peas, and cucumber can also be offered occasionally to provide dietary fibre and plant-based nutrition.
Feed adult Moonlight Gouramis once or twice daily, offering only as much food as the fish can consume within two to three minutes. Overfeeding is a common mistake with this species, as it tends to eat willingly and can easily become overweight if given the opportunity. Excess food that sinks to the substrate will decompose and degrade water quality, so remove any uneaten food promptly.
The Moonlight Gourami may occasionally nibble on soft-leaved aquatic plants, though this behaviour is generally limited and should not be a significant concern in a well-planted tank where the fish receives an adequate diet. If plant damage becomes noticeable, increase the proportion of vegetable matter in the diet to satisfy the fish’s desire for plant material.
Behaviour and Temperament
The Moonlight Gourami is one of the most peaceable members of the gourami family. It is a slow-moving, contemplative fish that spends much of its time drifting through the mid-water column or resting amongst vegetation. It is generally shy, especially in the first few weeks after introduction to a new tank, and may hide extensively until it feels secure in its surroundings. Providing ample plant cover and subdued lighting will help the fish to settle in more quickly.
Males can occasionally display mild territorial behaviour towards one another, particularly in smaller tanks or during breeding season. This is usually limited to flaring, posturing, and the occasional slow chase rather than outright aggression. Fin damage is uncommon but not unheard of if two males are kept in a tank that is too small for both to establish their own territory. In tanks of 300 litres or more, multiple males can typically coexist without significant conflict, especially if the aquascape provides visual barriers in the form of dense plant growth or hardscape.
The Moonlight Gourami is a surface-oriented fish that frequently visits the top of the water column to gulp air. This is entirely normal labyrinth fish behaviour and should not be confused with signs of oxygen deprivation. You will also observe the fish using its elongated pelvic fins as tactile sensors, gently touching plants, decor, and even other fish as it explores its environment. This “feeler” behaviour is characteristic of gouramis and is a fascinating aspect of their biology.
Despite its calm nature, the Moonlight Gourami can be easily startled by sudden movements, loud noises, or bright flashes of light. Stressed individuals may lose colour, refuse food, or spend extended periods hiding. Position the tank in a relatively quiet area of your home, away from television speakers, frequently slammed doors, or direct sunlight that could cause sudden temperature or light changes.
The Moonlight Gourami is not a shoaling fish in the strict sense, but it does appreciate the company of its own kind. A pair or a small group of one male with two or three females is an ideal arrangement for most aquariums. Keeping the species singly is also perfectly acceptable, as it does not require conspecific company to thrive, though a lone individual may be more retiring in its behaviour.
Tank Mates
The Moonlight Gourami’s peaceful temperament and moderate size make it compatible with a wide range of community fish. The key considerations when selecting tank mates are to avoid species that are aggressive, highly active, or known fin-nippers, as these will stress the gourami and may cause physical harm to its delicate fins. Similarly, very small fish that could be mistaken for food should be avoided, though the Moonlight Gourami’s small mouth means this is less of a concern than with some larger predatory species. Tank mates should ideally share a preference for warm, soft to moderately hard water with gentle flow.
Good tank mates
- Harlequin Rasbora – A peaceful, appropriately sized schooling fish from the same geographic region that shares similar water parameter preferences.
- Kuhli Loach – A gentle bottom-dweller that occupies a different zone of the tank and will not compete with the gourami for space or food.
- Corydoras sterbai – A warm-water-tolerant Corydoras species that makes an excellent peaceful bottom-dwelling companion.
- Bristlenose Pleco – A calm, algae-eating catfish that largely ignores mid-water fish and keeps to the lower regions of the tank.
- Pearl Gourami – Another peaceful gourami species of similar size that can coexist well in a sufficiently large, well-planted tank.
- Cherry Barb – A small, non-aggressive barb that adds colour to the mid-water zone without causing any conflict.
- Rummy-Nose Tetra – A tight-schooling tetra that prefers similar warm, soft water conditions and poses no threat to the gourami.
- Dwarf Chain Loach – An active but peaceful small loach that occupies the bottom of the tank and adds lively movement without aggression.
Fish to avoid
- Tiger Barb – A notorious fin-nipper that will relentlessly target the Moonlight Gourami’s trailing pelvic fins, causing stress and injury.
- Chinese Algae Eater – Becomes territorial and aggressive with age and may harass or attach to the gourami’s flanks.
- Convict Cichlid – A highly territorial and aggressive cichlid that will bully the peaceful Moonlight Gourami.
- Red-Tail Black Shark – Territorial and aggressive, particularly towards fish of a similar body shape or those occupying the same water column.
- Oscar – A large, predatory cichlid that will view the Moonlight Gourami as prey once it reaches adult size.
- Male Betta – Another labyrinth fish that may view the gourami as a rival, leading to aggression from either party.
- Giant Gourami – Far too large and boisterous to house with the Moonlight Gourami, and will dominate the tank entirely.
Breeding
Breeding the Moonlight Gourami in captivity is an achievable goal for the dedicated hobbyist, though it requires some preparation and a degree of patience. Like most gouramis, the Moonlight Gourami is a bubble nest builder. The male constructs a floating nest of air bubbles, often incorporating fragments of plant material, at the water’s surface. He then courts the female beneath the nest, and spawning takes place in the classic gourami embrace.
To condition a pair for breeding, separate the male and female for one to two weeks and feed them a rich diet of live and frozen foods such as bloodworm, daphnia, and brine shrimp. This high-protein diet helps to bring the female into spawning condition and encourages the male to begin nest building.
A dedicated breeding tank of at least 100 litres is recommended. The breeding tank should have very gentle filtration – a sponge filter is ideal – warm water at 28-30 °C, a pH of around 6.5-7.0, and soft water in the range of 4-8 dGH. Floating plants are essential, as the male will anchor his bubble nest amongst them. Water Lettuce, Amazon Frogbit, or even a sheet of bubble wrap cut to size can serve as a nest anchor. The water level can be lowered to around 15-20 centimetres, which is thought to improve spawning success.
Introduce the female to the breeding tank first and allow her to settle for a day or two before adding the male. The male will typically begin constructing or expanding his bubble nest shortly after introduction. Courtship involves the male displaying to the female with flared fins and intensified colouration, often swimming beneath the nest and nudging the female’s belly to entice her towards it.
When the female is ready, she will approach the nest, and the pair will engage in the spawning embrace. The male wraps his body around the female’s, and she releases a batch of eggs which are fertilised simultaneously. The buoyant eggs float upwards, and the male collects any that have drifted and places them carefully into the bubble nest. This process is repeated multiple times, with a single spawning producing anywhere from 200 to over 1,000 eggs.
After spawning is complete, the female should be removed from the breeding tank, as the male will become aggressively protective of the nest and may attack her. The male takes sole responsibility for guarding the nest, repairing it, and tending the eggs. He will retrieve any eggs that fall from the nest and blow new bubbles to replace those that burst.
The eggs typically hatch within 24 to 36 hours at 28-30 °C. The fry remain in the nest for a further two to three days, absorbing their yolk sacs, before becoming free-swimming. Once the fry are free-swimming, the male should also be removed, as he may begin to eat the fry at this stage.
Free-swimming fry are very small and require infusoria, liquid fry food, or commercially available fry preparations for the first week or so. After this initial period, they can be transitioned to freshly hatched brine shrimp nauplii and then to finely crushed flake food as they grow. Frequent small water changes are essential in the fry tank to maintain water quality, but care must be taken to avoid disturbing the water surface excessively. Growth is steady, and the young fish will begin to show their characteristic silvery sheen after several weeks.
Common Diseases
The Moonlight Gourami is a reasonably hardy species, but like all aquarium fish, it is susceptible to certain diseases, particularly when water quality is poor, the fish is stressed, or the diet is inadequate. Maintaining excellent water quality through regular water changes, proper filtration, and careful feeding is the single most effective way to prevent disease.
Iridovirus (Dwarf Gourami Disease) is a significant concern for many gourami species. While the Moonlight Gourami appears to be somewhat less susceptible to this viral infection than the Dwarf Gourami (Trichogaster lalius), it is not entirely immune. Iridovirus is incurable and often fatal, causing lethargy, loss of colour, abdominal swelling, and skin lesions. The virus is believed to be particularly prevalent in mass-bred fish from certain commercial breeding facilities. Sourcing fish from reputable breeders or quarantining new arrivals for at least two to four weeks can help to reduce the risk of introducing this disease to your aquarium.
Ichthyophthirius multifiliis, commonly known as white spot disease or ich, is one of the most frequently encountered diseases in freshwater aquariums. It presents as small white cysts on the skin, fins, and gills. The Moonlight Gourami’s preference for warm water actually works in its favour here, as raising the temperature to 30 °C can accelerate the parasite’s life cycle and make treatment more effective. Standard ich treatments containing malachite green or formalin are effective, though gouramis can be sensitive to some medications, so dosing should be approached cautiously – often starting at half the recommended dose.
Bacterial infections, including fin rot and columnaris, can occur when water quality deteriorates or the fish sustains physical injuries. Symptoms include frayed or disintegrating fins, white or grey patches on the skin, and lethargy. Treatment involves improving water quality, isolating the affected fish if possible, and using an appropriate antibacterial medication.
Fungal infections, recognisable by white, cotton-like growths on the body or fins, are typically secondary to physical damage or bacterial infections. They are treated with antifungal medications and by addressing the underlying cause. Internal parasites may also affect Moonlight Gouramis, particularly wild-caught or poorly quarantined specimens, and can present as weight loss, stringy white faeces, or a bloated abdomen.
Preventative measures are always preferable to treatment. Quarantine all new fish for a minimum of two weeks before adding them to an established tank, maintain stable water parameters, provide a varied and nutritious diet, and avoid overstocking the aquarium.
FAQs
How can I tell if my Moonlight Gourami is male or female?
Sexing Moonlight Gouramis can be challenging, especially in juvenile fish, but there are several reliable indicators in adults. Males tend to be slightly slimmer in body profile and often have a more pointed dorsal fin compared to the rounder dorsal fin of females. The most distinctive difference is in the pelvic fins: males have pelvic fins with a deeper reddish-orange colour, while females tend to have paler, more yellowish pelvic fins. During breeding condition, males will also display more vivid overall colouration, and females will appear noticeably rounder in the belly as they fill with eggs.
Can Moonlight Gouramis be kept with other gourami species?
Yes, Moonlight Gouramis can be kept with other peaceful gourami species such as the Pearl Gourami in a sufficiently large and well-planted tank. However, it is generally best to avoid housing them with more aggressive gourami species like the Three-Spot Gourami or with male Bettas, as these can provoke territorial disputes. When mixing gourami species, ensure the tank is large enough to provide each fish with its own territory, and provide plenty of visual barriers through dense planting and hardscape.
Why does my Moonlight Gourami keep going to the surface?
This is perfectly normal behaviour for a labyrinth fish. The Moonlight Gourami possesses a specialised organ called the labyrinth organ, which allows it to breathe atmospheric air directly from the surface. You will see your fish rise to the surface, take a quick gulp of air, and then return to the mid-water column. This is not a sign of poor water quality or oxygen deprivation – it is an innate behaviour that the fish would exhibit even in perfectly oxygenated water. However, if the fish is gasping constantly at the surface with visible distress, this could indicate a water quality issue that should be investigated.
Are Moonlight Gouramis suitable for a planted aquarium?
Absolutely. The Moonlight Gourami is an excellent choice for a planted aquarium. It thrives in densely planted environments