Cherry Barb

Quick summary

Yes, for most beginners: Cherry Barbs are hardy, easy to feed and breed, and get along peacefully with a wide range of community fish, making them ideal for a planted 60 litre or larger tank kept as a group of six or more. They do best with stable water quality and some plant cover, but are otherwise very forgiving of a range of water conditions.

🐠 Build a tank around this species

In this guide:

• Introduction
• Quick Stats
• Appearance
• Varieties and Morphs
• 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 Cherry Barb (Puntius titteya) is one of the most beloved small freshwater fish in the aquarium hobby, prized for its stunning coloration, peaceful temperament, and remarkable hardiness. Native to the shaded streams and tributaries of Sri Lanka, this diminutive cyprinid has been a staple of community aquariums for decades, and for good reason. Males in breeding condition display a breathtaking deep cherry-red hue that few other freshwater species can rival, while females offer a more subtle but equally attractive warm golden-brown colouration.

Despite their popularity in the aquarium trade, Cherry Barbs face significant pressures in the wild, where habitat destruction and deforestation have led to their classification as Vulnerable on the IUCN Red List. Fortunately, the vast majority of specimens available to aquarists today are captive-bred, meaning that keeping them places no additional burden on wild populations. Indeed, the global aquarium trade may have played a role in ensuring this species’ long-term genetic survival.

Cherry Barbs are an outstanding choice for both beginners and experienced fishkeepers alike. They are tolerant of a reasonably wide range of water conditions, accept virtually all standard aquarium foods with enthusiasm, and coexist peacefully with a broad variety of tank mates. Their manageable adult size of around five centimetres makes them suitable for modestly sized aquariums, while their shoaling behaviour and active disposition ensure they remain a constant source of visual interest. This guide covers everything you need to know to keep Cherry Barbs healthy, vibrant, and thriving in your aquarium.

Appearance

The Cherry Barb possesses an elongated, slightly laterally compressed body that is typical of smaller cyprinids. A dark horizontal stripe runs from the tip of the snout through the eye and along the lateral midline to the base of the caudal fin. Above this stripe sits a second, less pronounced golden or iridescent line that catches the light beautifully as the fish moves through the water. The fins are relatively small and translucent, often tipped with a subtle reddish or amber wash depending on the fish’s sex and condition.

Sexual dimorphism in this species is striking. Males develop a rich, deep crimson colouration that intensifies dramatically during breeding or when they are competing for the attention of females. In peak condition, a male Cherry Barb is suffused with red across the entire body and fins, making the dark lateral stripe appear almost to glow against the surrounding colour. Females are noticeably paler, displaying a warm fawn or golden-brown body with a more prominent dark lateral band. They tend to have a slightly rounder, fuller belly, particularly when carrying eggs.

Juvenile Cherry Barbs of both sexes resemble adult females and only begin to differentiate in colour as they mature, typically from around three to four months of age. The intensity of a male’s red colouration is influenced by diet, water quality, social dynamics, and the presence of competing males, so providing optimal conditions and a balanced group will bring out their finest colours.

Varieties and Morphs

Over the decades, selective breeding has produced a small number of distinct captive-bred variants of the Cherry Barb. While the wild-type form remains the most widely available and arguably the most attractive, these morphs offer aquarists additional options.

The Super Red Cherry Barb is a line-bred variant in which the red pigmentation has been selectively enhanced. Males of this morph display a noticeably deeper, more saturated red across the entire body, and even females may exhibit a stronger pinkish-red tone compared to wild-type females. They are sometimes also marketed as Ultra Red Cherry Barbs. Care requirements are identical to those of the standard form.

The Albino Cherry Barb is a naturally occurring colour morph that lacks the dark melanin pigmentation found in wild-type fish. These fish display a pale pinkish-cream body with translucent fins and red or pink eyes. Males still develop a pinkish-red wash, though it is lighter and less vivid than in their wild-type counterparts. Albino Cherry Barbs are somewhat less common in shops but are otherwise identical in behaviour and care needs. They may be slightly more sensitive to very bright lighting due to the absence of melanin in the eyes.

A Long-Fin Cherry Barb has also appeared in the trade from time to time. These fish have been selectively bred for elongated dorsal, anal, and caudal fins. They retain the standard colouration of either the wild-type or the super red variant but feature flowing finnage reminiscent of long-finned danio varieties. As with other long-finned morphs, care should be taken to house them away from fin-nipping species.

Natural Habitat

Cherry Barbs are endemic to Sri Lanka, where they inhabit slow-moving, heavily shaded streams, brooks, and small rivers in the lowland wet zone of the island. Their range is centred on the Kelani and Nilwala river basins, as well as a number of smaller drainages in the south-western corner of the country. These waterways flow through tropical rainforest and secondary growth, and the dense canopy overhead filters out much of the direct sunlight, creating dim, dappled conditions at the water’s surface.

The substrate in these streams typically consists of sandy or silty beds overlaid with a thick carpet of leaf litter, fallen twigs, and decomposing organic matter. This material releases tannins into the water, giving it a slightly tea-stained appearance and lowering the pH. Aquatic and marginal vegetation is often abundant, providing additional cover. Water flow tends to be gentle, and temperatures remain warm and relatively stable year-round, generally between 23 and 27 degrees Celsius.

Understanding these natural conditions is key to replicating a comfortable environment in captivity. Cherry Barbs are not open-water swimmers by nature; they prefer densely planted or well-decorated tanks with plenty of hiding places and subdued lighting. While they are adaptable enough to thrive in a wide range of aquarium setups, providing conditions that echo their native habitat will reward you with more confident, brightly coloured fish that display a fuller repertoire of natural behaviours.

Tragically, deforestation and agricultural expansion in Sri Lanka have degraded or destroyed many of the streams where Cherry Barbs were historically found. The species is classified as Vulnerable by the IUCN, and its wild range continues to contract. Captive breeding programmes and responsible aquarium keeping play a positive role in maintaining healthy genetic populations of this beautiful little fish outside its increasingly threatened homeland.

Tank Size and Setup

A group of Cherry Barbs can be comfortably housed in an aquarium of 60 litres or more. Because they are a shoaling species, you should aim to keep them in groups of at least six, though groups of eight to ten or more are preferable and will result in more natural behaviour and more vibrant male colouration. For larger groups, or if you plan to keep them in a community setup with other species, a tank of 80 to 120 litres or above will provide ample space for everyone.

When setting up the aquarium, aim to recreate the shaded, densely vegetated environment of their native Sri Lankan streams. A dark, fine-grained substrate such as sand or smooth gravel works well and helps to show off the fish’s colours. Live plants are highly recommended, and species such as Java Fern, Cryptocoryne, Anubias, and Vallisneria all thrive in similar conditions and provide the cover that Cherry Barbs appreciate. Floating plants such as Amazon Frogbit or Water Lettuce are particularly valuable, as they diffuse overhead light and create the dim, dappled conditions under which these fish feel most secure.

Supplement the planting with pieces of driftwood, smooth stones, and leaf litter if desired. Indian Almond leaves are an excellent addition: they release beneficial tannins that slightly lower pH and GH, tint the water a natural amber colour, and provide microfilm and infusoria for fry and adult fish alike. Ensure there are open swimming areas in the middle and front of the tank, as Cherry Barbs, while fond of cover, are not reclusive fish and will actively explore and forage throughout the aquarium when they feel safe.

A secure-fitting lid or cover glass is advisable, as Cherry Barbs can occasionally jump, particularly when startled. Adequate lighting for plant growth is fine, but avoid excessively bright, unshaded lighting, which can make the fish appear washed out and encourage them to hide more than they otherwise would.

Water Parameters

Cherry Barbs are notably adaptable when it comes to water chemistry, which is one of the reasons they are so well suited to beginners. They tolerate a broad range of pH and hardness values, though they tend to show their best colour and most active behaviour in slightly acidic to neutral, moderately soft water. Stability is more important than hitting precise numbers, so focus on maintaining consistent conditions and performing regular water changes rather than chasing a specific target value.

Weekly water changes of 20 to 30 per cent are recommended to keep nitrate levels low and the water fresh. Always treat tap water with a suitable dechlorinator before adding it to the aquarium, and try to match the temperature of new water closely to that of the tank to avoid sudden temperature swings. If your tap water is particularly hard or alkaline, the addition of driftwood, peat, or Indian Almond leaves can help to soften it gently and bring the pH down into a more optimal range, though this is by no means essential for the species’ well-being.

Filtration and Equipment

Cherry Barbs do not have demanding filtration requirements, but good biological and mechanical filtration is essential for maintaining water quality in any aquarium. A standard hang-on-back filter, internal filter, or small canister filter rated for the tank’s volume will work perfectly well. Because Cherry Barbs originate from slow-moving streams, avoid creating excessive water flow. If your filter produces a strong current, baffle the outlet or redirect it against the glass to disperse the flow more gently.

A reliable, adjustable heater is necessary to maintain a stable temperature within the recommended range. In most heated homes, a heater set to around 24 to 26 degrees Celsius will keep conditions ideal. Use an accurate thermometer, ideally a digital one or a glass spirit thermometer, placed at the opposite end of the tank from the heater to verify that heat is being distributed evenly.

Lighting should be sufficient to support live plant growth if plants are present but does not need to be intense. A standard LED aquarium light on a timer set for eight to ten hours per day will keep plants healthy without overpowering the fish. As mentioned, floating plants can be used to temper the light intensity and create a more natural atmosphere. An air pump is not strictly necessary if the filter provides adequate surface agitation for gas exchange, but it does no harm and can be beneficial in warmer weather when dissolved oxygen levels may dip.

Diet and Feeding

Cherry Barbs are true omnivores with unfussy appetites, readily accepting virtually any food offered to them. In the wild, they feed on small invertebrates, algae, detritus, and organic matter found among leaf litter and aquatic vegetation. In the aquarium, a varied diet is the key to good health, strong colouration, and breeding condition.

A high-quality micro pellet or flake food formulated for small tropical fish should form the staple of their diet. Supplement this regularly with live or frozen foods such as daphnia, brine shrimp, bloodworm, cyclops, and mosquito larvae. These protein-rich foods are particularly valuable for conditioning breeding pairs and encouraging the intense red colouration in males. Freeze-dried alternatives can also be used, though they are generally less nutritious than their live or frozen counterparts.

Cherry Barbs will also graze on soft algae and biofilm that accumulates on plant leaves, driftwood, and tank glass, contributing to a balanced and natural feeding regime. Blanched vegetables such as courgette, spinach, or shelled peas can be offered occasionally for additional variety and fibre.

Feed small amounts once or twice daily, offering only as much food as the fish can consume within two to three minutes. Overfeeding is a common pitfall in fishkeeping and leads to poor water quality, obesity, and related health problems. Cherry Barbs have small stomachs, so little and often is preferable to large, infrequent meals. One fasting day per week can be beneficial for the digestive health of adult fish.

Behaviour and Temperament

Cherry Barbs are among the most peaceful barb species and are notably less boisterous than some of their larger relatives, such as the Tiger Barb. They are a loosely shoaling species, meaning they tend to stay within visual contact of one another but do not form the tight, synchronised schools seen in some tetras or rasboras. Each fish maintains a small amount of personal space, and males in particular will gently spar with one another, flaring their colours and displaying to assert subtle hierarchies.

These sparring bouts are entirely harmless and are in fact one of the most enjoyable aspects of keeping this species. When two or more males compete for the attention of nearby females, they intensify their red colouration to a remarkable degree, creating a vivid and dynamic spectacle. For this reason, keeping a group with multiple males is highly recommended. A ratio of roughly two females to every male helps to distribute any courtship pressure and prevents individual females from being pestered excessively.

Cherry Barbs are not fin nippers, nor are they aggressive towards other species. They can be somewhat timid when first introduced to a new tank, but they settle in quickly, especially if the aquarium is well planted and contains plenty of visual barriers. Once established, they are confident, active fish that spend much of their time foraging in the midwater and lower levels of the aquarium, weaving through plants and investigating the substrate. They rarely bother other tank mates and will generally flee from confrontation rather than engaging in it.

Tank Mates

The Cherry Barb’s peaceful disposition and modest size make it compatible with a wide range of community fish. The ideal tank mates are similarly sized, non-aggressive species that share comparable water parameter requirements. Avoid housing Cherry Barbs with large, predatory, or overtly territorial fish that may stress or consume them.

Good tank mates

• Harlequin Rasbora, a similarly sized, peaceful shoaling fish from South-East Asia that shares the Cherry Barb’s preference for planted aquariums and gentle water flow.
• Neon Tetra, a classic community fish whose calm temperament and small size make it an excellent companion in a well-planted setup.
• Corydoras Catfish, peaceful bottom-dwellers that occupy a different zone of the tank and pose absolutely no threat to Cherry Barbs.
• Kuhli Loach, a shy, nocturnal bottom-dweller that coexists harmoniously with Cherry Barbs and adds interest to the lower levels of the aquarium.
• Honey Gourami, a gentle, slow-moving labyrinth fish that thrives in the same warm, densely planted conditions favoured by Cherry Barbs.
• Celestial Pearl Danio, a tiny, peaceful species that complements Cherry Barbs beautifully in a planted nano or small community tank.
• Bristlenose Pleco, a calm, algae-eating catfish that stays out of the Cherry Barb’s way and contributes usefully to tank maintenance.
• Otocinclus Catfish, a small, inoffensive algae grazer that makes an ideal companion in a planted community aquarium.
• Amano Shrimp, large enough to avoid being eaten by Cherry Barbs, these industrious invertebrates make excellent clean-up crew members in a shared tank.
• Ember Tetra, a diminutive, warm-coloured tetra that occupies the midwater column and blends beautifully with a Cherry Barb shoal.

Fish to avoid

• Tiger Barb, a notorious fin nipper and a more boisterous species that can bully and stress the quieter Cherry Barb.
• Oscar, a large, predatory cichlid that will view Cherry Barbs as food rather than companions.
• Convict Cichlid, a territorial and aggressive cichlid, especially during breeding, that will intimidate and potentially harm Cherry Barbs.
• Red Tail Shark, a highly territorial species that aggressively chases smaller fish occupying its claimed territory at the bottom of the tank.
• Green Terror, a large, aggressive New World cichlid entirely unsuitable for housing with small, peaceful species like Cherry Barbs.
• Jack Dempsey, another large, predatory cichlid that would pose a serious threat to any small barb species.
• African Jewel Cichlid, fiercely territorial and aggressive, particularly when breeding, and far too combative for a peaceful community.
• Flowerhorn, an extremely aggressive hybrid cichlid that requires species-only housing and would readily consume Cherry Barbs.

Breeding

Cherry Barbs are among the easiest egg-scattering species to breed in the home aquarium, and spawning can occur spontaneously in a well-maintained community tank. However, if you wish to raise a meaningful number of fry, a dedicated breeding setup is advisable, as the adults, along with most other tank inhabitants, will readily eat the eggs and newly hatched fry.

To condition a breeding pair or small group, increase the proportion of live and frozen foods in their diet for one to two weeks. Select the brightest, most intensely coloured males and the plumpest, most egg-laden females. A female ready to spawn will appear noticeably rounded in the belly when viewed from above.

Prepare a small breeding tank of 20 to 40 litres with a sponge filter set to a very gentle flow. The water should be soft and slightly acidic, ideally around 6.0 to 6.5 pH and 4 to 8 dGH, at a temperature of 26 to 28 degrees Celsius. Cover the bottom of the tank with a layer of Java Moss, spawning mops, or a mesh grid through which eggs can fall out of reach of the parents. Dim the lighting or use floating plants to keep the tank subdued.

Introduce the conditioned pair to the breeding tank in the evening. Spawning typically takes place the following morning and involves the male displaying vigorously to the female, intensifying his red colouration and swimming alongside her in a shimmering dance. The female scatters her adhesive eggs among fine-leaved plants or spawning mops, and the male fertilises them immediately. A single female may produce 200 to 300 eggs over the course of several hours.

Remove the adults as soon as spawning is complete to prevent egg predation. The eggs are small, semi-transparent, and sticky, adhering to plant material or moss. They hatch within 24 to 48 hours at the recommended temperature, and the tiny fry become free-swimming after a further two to three days once they have absorbed their yolk sacs. At this stage, feed them infusoria, liquid fry food, or commercially available powdered fry food. After a week or so, they will be large enough to accept freshly hatched brine shrimp nauplii, which will accelerate their growth considerably. With good nutrition and clean water, the fry grow steadily and begin to show adult colouration at around two to three months of age.

Common Diseases

Cherry Barbs are generally robust fish, but like all aquarium species, they are susceptible to a number of common diseases, particularly when water quality is poor or the fish are stressed by overcrowding, aggression, or rapid changes in conditions.

Ich, or white spot disease, caused by the protozoan parasite Ichthyophthirius multifiliis, is perhaps the most frequently encountered ailment. It presents as small white spots resembling grains of salt scattered across the body and fins. Affected fish may also clamp their fins and rub against hard surfaces. Raising the temperature gradually to 28 to 30 degrees Celsius and treating with a copper-based or malachite green medication will typically resolve an outbreak within a week to ten days.

Fin rot is a bacterial infection that causes the edges of the fins to become ragged, frayed, or discoloured. It is almost always secondary to poor water quality, physical injury, or stress. Improving water conditions through increased water changes is the first and most important step. In more advanced cases, a broad-spectrum antibacterial treatment may be needed.

Columnaris, sometimes referred to as cotton wool disease, is another bacterial infection that can affect Cherry Barbs. It manifests as white or greyish patches on the body, head, or mouth, and can progress rapidly if untreated. It tends to occur in tanks with elevated temperatures combined with poor hygiene. Treatment involves antibacterial medications and, critically, addressing the underlying water quality issues.

Internal parasites, while less visually obvious, can cause weight loss, lethargy, and stringy white faeces. These are most commonly introduced with wild-caught fish or live foods collected from natural water sources. Anti-parasitic foods or medications added to the water can be effective treatments.

Prevention, as always, is far better than cure. Maintaining excellent water quality through regular water changes, avoiding overcrowding, quarantining new fish before adding them to an established tank, and providing a varied, nutritious diet will keep your Cherry Barbs in peak health and make disease outbreaks a rare occurrence.

FAQs

How many Cherry Barbs should I keep together?

Cherry Barbs are a shoaling species and should be kept in groups of at least six, though eight to ten or more is preferable. Larger groups distribute any social pressure more evenly, reduce stress on individual fish, and encourage the males to display their most vibrant colouration as they compete gently with one another. A solitary or paired Cherry Barb will often appear pale, withdrawn, and stressed.

Will Cherry Barbs eat shrimp?

Adult Cherry Barbs generally coexist well with larger shrimp species such as Amano Shrimp and adult Cherry Shrimp. However, they may prey on very small shrimp, newly born shrimplets, and dwarf shrimp species. If you are keeping a breeding colony of Neocaridina or Caridina shrimp, providing dense plant cover, particularly mosses, will give the shrimplets places to hide and improve their survival rate. In a well-planted tank, viable populations of both Cherry Barbs and Cherry Shrimp can often be maintained simultaneously.

Why are my Cherry Barbs losing their colour?

Pale or washed-out colouration in Cherry Barbs is usually a sign of stress, poor water quality, inadequate diet, or unsuitable tank conditions. Check your water parameters and ensure ammonia and nitrite are at zero and nitrate is below 20 ppm. Verify that the tank has sufficient cover in the form of plants, driftwood, or other décor, as exposed fish in bare tanks tend to pale as a stress response. A monotonous diet lacking in carotenoid-rich foods can also contribute to poor colour. Offering a variety of live or frozen foods alongside a quality staple food will help restore vibrancy. Bright overhead lighting with no shade can also cause the fish to appear paler than they would under more subdued conditions.

Can Cherry Barbs live in an unheated tank?

Cherry Barbs prefer water temperatures of 22 to 28 degrees Celsius and are tropical fish that require a heater in most climates. In consistently warm environments where indoor temperatures reliably stay above 22 degrees Celsius year-round, an unheated tank may be feasible, but this is uncommon in the United Kingdom. Temperature fluctuations, particularly overnight drops, can stress the fish and make them more susceptible to disease. A thermostatically controlled heater is a small investment that provides important stability and peace of mind.

Are Cherry Barbs fin nippers?

No, Cherry Barbs are not fin nippers. Unlike some of their more boisterous relatives in the barb family, such as the Tiger Barb, Cherry Barbs are exceptionally peaceful and show no inclination to nip the fins of other species. They are safe to keep with long-finned fish such as guppies, bettas, and gouramis, though care should be taken that the other species in question are similarly peaceful and will not bully the Cherry Barbs in return.

Related Guides

• Harlequin Rasbora Care Guide, another excellent small shoaling fish from South-East Asia that pairs beautifully with Cherry Barbs in a planted community.
• Honey Gourami Care Guide, a gentle centrepiece species that thrives alongside Cherry Barbs in warm, densely planted aquariums.
• Corydoras Catfish Care Guide, peaceful bottom-dwellers that complement the midwater activity of Cherry Barbs perfectly.
• Ember Tetra Care Guide, a tiny warm-toned tetra that occupies a similar niche and creates a striking display when kept alongside Cherry Barbs.
• Planted Aquarium Setup Guide, comprehensive guidance on creating the lush, densely planted environment in which Cherry Barbs look and feel their best.