Red Cherry Shrimp Care Guide — Tank Setup, Feeding and Breeding

ByTankora

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Quick summary

Red Cherry Shrimp are hardy, peaceful, and easy to breed, making them an excellent choice for beginners and experienced keepers alike, and they thrive in tanks as small as 20 litres with minimal equipment. If you want a colourful, low-maintenance clean-up crew that breeds readily on its own, this species is well worth considering.

In this guide:

Introduction

Red Cherry Shrimp (Neocaridina davidi) are arguably the most popular freshwater invertebrate in the aquarium hobby, and for very good reason. These small, brilliantly coloured shrimp are hardy, peaceful, endlessly fascinating to watch, and remarkably easy to breed. Whether you are a complete beginner looking for your first shrimp colony or an experienced aquarist searching for an industrious clean-up crew, Red Cherry Shrimp deliver on every front.

Originally selectively bred from the wild-type Neocaridina davidi, which is a rather drab, translucent shrimp, Red Cherry Shrimp have been developed over generations into vivid shades of red. Today they are available in numerous grades, from the lightly coloured Cherry grade through to the deep, opaque Painted Fire Red and Bloody Mary varieties. Regardless of grade, their care requirements remain identical, making them an ideal species for anyone venturing into the world of freshwater shrimp keeping.

Beyond their visual appeal, Red Cherry Shrimp serve an important practical role in planted aquariums. They are relentless grazers of biofilm, algae, and detritus, helping to keep tanks clean and balanced. A thriving colony can visibly reduce the amount of algae on hardscape, glass, and plant leaves, earning them a well-deserved reputation as one of the best natural cleaning crews available to hobbyists.

In this comprehensive care guide, we cover everything you need to know about keeping, feeding, breeding, and troubleshooting Red Cherry Shrimp in your home aquarium. From water parameters and tank setup to compatible tank mates and common diseases, this guide will equip you with the knowledge to maintain a healthy, self-sustaining colony for years to come.

Quick Stats

Scientific name Neocaridina davidi
Common names Red Cherry Shrimp, Cherry Shrimp, RCS, Fire Shrimp
Family Atyidae
Origin Taiwan, China, Korea, Vietnam
Adult size 2.5–3.5 cm (1–1.4 inches)
Lifespan 1–2 years
Difficulty Easy
Breeding difficulty Easy
Temperature 18–28 °C (64–82 °F)
pH range 6.5–8.0
GH 6–12 dGH
KH 2–8 dKH
Minimum tank size 20 litres (5 gallons)
Conservation status Least Concern (IUCN)

Appearance

Red Cherry Shrimp are small, compact invertebrates with a classic caridean body shape, a curved, segmented abdomen, a fan-shaped tail (uropod), long antennae, and five pairs of walking legs (pereopods) along with smaller swimmerets (pleopods) beneath the abdomen. Females are generally larger and more robustly built than males, reaching up to 3.5 cm in length, whilst males typically stay closer to 2.5 cm.

Their most defining feature is, of course, their colouration. Through decades of selective breeding, Red Cherry Shrimp are available in several recognised grades that describe the intensity and coverage of their red pigment:

  • Cherry grade: Light red colouration, often patchy or translucent in places. This is the most common and affordable grade.
  • Sakura grade: A more solid red with less translucency, though some clear patches may remain on the legs and underside.
  • Fire Red grade: Deep, consistent red colouration covering the entire body, including the legs. Very little to no translucency.
  • Painted Fire Red grade: The most intensely coloured grade, with a thick, opaque red that completely covers the body. Even the saddle (egg mass visible through the carapace in females) is obscured by pigment.

Females consistently display deeper, more vivid colouration than males. Males tend to be slimmer, more translucent, and paler, sometimes appearing almost clear with just a faint reddish hue. This sexual dimorphism makes sexing adult shrimp relatively straightforward. Additionally, mature females develop a visible saddle, a yellowish patch behind the head where unfertilised eggs are stored, which becomes even more obvious in lower-grade specimens with less opaque colouration.

It is worth noting that colouration can be influenced by several environmental factors. Shrimp kept on dark substrates, well-fed diets rich in natural colour enhancers like astaxanthin, and in stable water conditions will typically show their best colour. Stress, poor nutrition, or very light-coloured substrates can cause shrimp to appear washed out.

Natural Habitat

The wild ancestor of the Red Cherry Shrimp, Neocaridina davidi, is native to freshwater streams, ponds, and rivers across eastern Asia, predominantly in Taiwan, mainland China, Korea, and northern Vietnam. In the wild, these shrimp inhabit slow-moving to moderately flowing waterways with abundant vegetation, leaf litter, and rocky substrates. They are typically found in shallow, well-oxygenated waters where dense plant growth provides cover from predators and a rich source of biofilm and algae, their primary food sources.

Wild populations thrive in a surprisingly wide range of water conditions, from slightly acidic to moderately alkaline, and in temperatures ranging from cool mountain streams to warmer lowland waters. This natural adaptability is one of the reasons why Neocaridina davidi has proven so successful in captivity and has even established feral populations in some countries where they have been introduced, including parts of Europe and North America.

The wild-type colouration is a mottled brown-green or grey-brown, which provides effective camouflage against natural substrates and among decaying plant matter. The vibrant red colouration seen in aquarium specimens is entirely the result of selective breeding and would be a significant disadvantage in the wild, where it would make the shrimp highly visible to predators.

Tank Size and Setup

One of the great advantages of Red Cherry Shrimp is that they require very little space. A colony can be successfully maintained in an aquarium as small as 20 litres (5 gallons), though larger tanks of 40 litres (10 gallons) or more are recommended for beginners. Larger volumes of water are inherently more stable, meaning temperature fluctuations and shifts in water chemistry happen more slowly, giving you a greater margin for error. A 40–60 litre tank is often considered the sweet spot, large enough to support a substantial colony whilst remaining manageable and affordable.

When setting up a tank for Red Cherry Shrimp, substrate choice is an important consideration. A dark-coloured, fine-grained substrate is ideal. Dark substrates encourage the shrimp to display their best colouration, and fine grains allow baby shrimp to forage safely without becoming trapped. Popular options include fine black gravel, dark sand, or specialised shrimp substrates. Active buffering substrates (such as those designed for Caridina shrimp) are generally unnecessary for Neocaridina and can actually push the pH too low for their preference.

Live plants are arguably the single most beneficial addition to a Cherry Shrimp tank. Plants serve multiple purposes: they provide grazing surfaces covered in biofilm, offer shelter for shrimplets (baby shrimp), contribute to water quality by absorbing nitrates, and create a more natural, aesthetically pleasing environment. Excellent plant choices for a shrimp tank include:

  • Java Moss (Taxiphyllum barbieri): Perhaps the quintessential shrimp plant. Its dense, tangled structure is a haven for shrimplets and a perpetual source of biofilm.
  • Java Fern (Microsorum pteropus): Hardy, low-light, and provides broad leaves for grazing.
  • Anubias species: Slow-growing, robust, and excellent biofilm producers on their broad leaves.
  • Marimo Moss Balls: Shrimp love to graze on these, and they contribute to water quality.
  • Floating plants (Salvinia, Frogbit, Duckweed): Provide shade, absorb excess nutrients, and give a sense of security.

Hardscape such as driftwood, rocks, and coconut shells adds additional surface area for biofilm growth and provides hiding places. Indian Almond Leaves (Catappa leaves) and dried alder cones are popular additions that release beneficial tannins, mildly lower pH, and serve as a food source as they decompose. Cholla wood is another excellent option, its hollow, porous structure is irresistible to shrimp and becomes covered in biofilm within days of being submerged.

Ensure the tank has a secure lid or at least a good cover, as shrimp can occasionally climb above the waterline, particularly along filter intakes, heater cables, or silicone seams. Whilst they are not prolific jumpers like some fish, accidental escapes can occur.

Water Parameters

Red Cherry Shrimp are famously tolerant of a wide range of water conditions, which is a significant part of their appeal for beginners. That said, stability is far more important than hitting a specific number. Shrimp are more sensitive to sudden changes in water chemistry than they are to slightly imperfect parameters. The key is to find stable values within the acceptable range and maintain them consistently.

Temperature 18–28 °C (64–82 °F), ideal 20–24 °C
pH 6.5–8.0, ideal 7.0–7.5
GH (General Hardness) 6–12 dGH
KH (Carbonate Hardness) 2–8 dKH
Ammonia 0 ppm
Nitrite 0 ppm
Nitrate Below 20 ppm
TDS (Total Dissolved Solids) 150–300 ppm

Ammonia and nitrite must always read zero in an established tank. Shrimp are considerably more sensitive to these compounds than most fish, and even trace amounts can cause stress, failed moults, and death. This is precisely why it is essential to fully cycle your aquarium before adding any shrimp. A properly cycled tank will have established colonies of beneficial bacteria capable of converting ammonia to nitrite and nitrite to nitrate efficiently.

Nitrate levels should be kept below 20 ppm through regular water changes and the presence of live plants. Whilst Red Cherry Shrimp can tolerate moderate nitrate levels better than more sensitive species like Crystal Red Shrimp, chronically elevated nitrates will suppress breeding and can lead to health issues over time.

GH (general hardness) is particularly important for shrimp because they require calcium and magnesium to build their exoskeletons. A GH below 4 dGH can lead to moulting problems, whilst excessively hard water above 14–15 dGH can also cause difficulties. If your tap water is very soft, consider remineralising it with a product such as Salty Shrimp GH/KH+ to achieve appropriate mineral levels.

When performing water changes, use dechlorinated water that has been temperature-matched as closely as possible to the tank water. Drastic temperature swings can trigger premature moulting and stress. Aim for weekly water changes of 10–20%, adding the new water slowly, ideally dripped in over 30–60 minutes, to avoid shocking the shrimp.

Copper is highly toxic to all invertebrates, including Red Cherry Shrimp. Always check that any medications, fertilisers, or water conditioners you use are copper-free. Even trace amounts of copper in tap water delivered through copper plumbing can be problematic. If you suspect copper contamination, consider using a water conditioner that binds heavy metals, or switch to remineralised reverse osmosis (RO) water.

Filtration and Equipment

Filtration is critical for any shrimp tank, but the type of filter matters enormously. The single most popular and highly recommended filter for a dedicated shrimp tank is a sponge filter. Sponge filters provide gentle water movement, excellent biological filtration, and, crucially, pose no risk of sucking up baby shrimp. The sponge itself also becomes a rich grazing surface covered in biofilm, effectively doubling as a food source.

If you prefer to use a hang-on-back (HOB) filter or a canister filter for greater mechanical and chemical filtration capacity, you must fit the intake with a fine sponge pre-filter or stainless steel mesh guard to prevent shrimplets from being drawn into the impeller. Baby Cherry Shrimp are tiny, barely 2 mm at birth, and will be easily sucked into any unprotected filter intake.

An air pump paired with a sponge filter provides adequate aeration for most shrimp tanks. Red Cherry Shrimp do appreciate well-oxygenated water, and surface agitation from a sponge filter or air stone helps with gas exchange. In warmer environments or during summer months, increased aeration becomes even more important, as warmer water holds less dissolved oxygen.

A heater may or may not be necessary depending on your ambient room temperature. Red Cherry Shrimp tolerate temperatures from 18–28 °C, so in many temperate homes, a heater is unnecessary during most of the year. If your room temperature drops below 18 °C in winter, a small adjustable heater set to 20–22 °C is advisable. Use a heater guard to prevent shrimp from resting directly on the heating element and sustaining burns.

Lighting is primarily a concern if you are growing live plants. Standard LED aquarium lights on a timer set for 6–8 hours per day are sufficient for most low to moderate light plants. Shrimp themselves do not require specific lighting and may actually feel more secure in moderately lit environments with plenty of shaded areas.

Diet and Feeding

Red Cherry Shrimp are omnivorous scavengers and detritivores. In a well-established, planted aquarium with a healthy colony of biofilm, they may require very little supplemental feeding. The biofilm, algae, and decomposing plant matter that naturally accumulate in a mature tank can sustain a small to moderate colony. However, supplemental feeding is recommended to ensure optimal health, colouration, and breeding success, particularly as the colony grows.

A varied diet is the key to healthy, colourful shrimp. Offer a rotation of the following food types:

  • High-quality shrimp pellets or granules: Purpose-formulated shrimp foods from reputable brands provide a balanced nutritional profile. Look for foods that list whole ingredients and avoid those with excessive fillers.
  • Blanched vegetables: Shrimp relish blanched spinach, courgette (zucchini), cucumber, kale, broccoli, and sweet potato. Blanch briefly in boiling water to soften, then cool before adding to the tank. Remove uneaten portions after 12–24 hours to prevent water quality issues.
  • Protein supplements: Occasional offerings of freeze-dried or frozen bloodworms, daphnia, or brine shrimp provide essential protein, particularly beneficial for females carrying eggs.
  • Mineral supplements: Calcium-rich foods such as cuttlebone pieces, mineral balls, or specialised mineral supplements support healthy moulting.
  • Leaf litter: Indian Almond Leaves, mulberry leaves, and dried oak leaves decompose slowly in the tank, developing a coating of biofilm that shrimp graze on continuously. These are an excellent passive food source.
  • Powdered foods: Products like Bacter AE or similar biofilm-enhancing powders promote biofilm growth throughout the tank, providing a continuous food source that is especially beneficial for shrimplets too small to eat pellets.

Feed sparingly. Overfeeding is one of the most common mistakes in shrimp keeping and can rapidly degrade water quality. A good rule of thumb is to feed only what the colony can consume within 2–3 hours, and to have at least one or two fasting days per week. Shrimp are constant grazers and will not starve in a well-established tank, even without supplemental feeding for several days.

Behaviour and Temperament

Red Cherry Shrimp are entirely peaceful, non-aggressive, and completely harmless to any tank mate. They spend the vast majority of their time foraging, methodically picking over surfaces with their small chelipeds (claws) in search of biofilm, algae, and detritus. This constant foraging behaviour is one of the most endearing and entertaining aspects of keeping shrimp.

They are social creatures and are best kept in groups. A minimum of ten shrimp is recommended to establish a comfortable colony with visible social dynamics and to ensure both sexes are represented for breeding purposes. In larger groups, you will notice them congregating on food, exploring together, and generally appearing more confident and active.

One fascinating behaviour to observe is moulting. As shrimp grow, they periodically shed their exoskeleton, a process known as ecdysis. After moulting, the shrimp is briefly vulnerable, with a soft new shell that takes several hours to harden. During this time, they typically hide amongst plants or hardscape. The shed exoskeleton is often left in the tank and should not be removed, as other shrimp will consume it to recycle the valuable calcium and minerals.

Female Cherry Shrimp that have just moulted release pheromones into the water that trigger a behaviour known as the “mating dance” or “swimming frenzy.” Males become visibly agitated and swim rapidly around the tank in search of the receptive female. This erratic swimming behaviour can alarm new shrimp keepers who may mistake it for distress, but it is entirely normal and a positive sign that your colony is healthy and actively breeding.

Red Cherry Shrimp are generally quite bold once established, but they can be skittish in newly set-up tanks or when kept with boisterous tank mates. Providing ample hiding places and dense vegetation helps them feel secure and encourages them to spend more time out in the open.

Tank Mates

Choosing appropriate tank mates for Red Cherry Shrimp requires careful consideration. The fundamental rule is simple: if a fish can fit a shrimp in its mouth, it will almost certainly eat it. Even species that are technically too small to consume adult shrimp may prey heavily on shrimplets, effectively preventing the colony from growing. For this reason, many dedicated shrimp keepers opt for species-only tanks, which offer the best chance of a large, thriving colony. However, if you do wish to keep shrimp alongside fish, several peaceful, small species can coexist successfully.

Good tank mates

  • Otocinclus Catfish, peaceful algae eaters that completely ignore shrimp
  • Pygmy Corydoras, tiny, gentle bottom-dwellers that pose no threat
  • Kuhli Loach, shy, peaceful loaches that generally leave shrimp alone
  • Chili Rasbora, one of the smallest rasboras; too small to eat adult shrimp
  • Celestial Pearl Danio, tiny, peaceful nano fish suitable for shrimp tanks
  • Ember Tetra, small, peaceful tetra that rarely bothers shrimp
  • Nerite Snails, excellent algae-eating snails that coexist perfectly with shrimp
  • Mystery Snails, peaceful, larger snails that share similar water requirements
  • Amano Shrimp, larger shrimp that coexist peacefully with Cherry Shrimp

Fish to avoid

  • Betta Fish, may hunt and eat shrimp, especially in smaller tanks
  • Angelfish, large enough to easily consume adult shrimp
  • Goldfish, will eat shrimp and require different water parameters
  • Dwarf Gourami, known to prey on small shrimp and shrimplets
  • Oscar Fish, large, predatory cichlid that will eat any shrimp instantly
  • Tiger Barb, boisterous and likely to harass or eat shrimp
  • Rainbow Shark, territorial and will readily consume shrimp
  • Flowerhorn Cichlid, large, aggressive predator entirely incompatible with shrimp

Breeding

Red Cherry Shrimp are one of the easiest aquatic species to breed in captivity. In fact, if you provide stable water conditions, a decent diet, and keep both males and females together, breeding will happen with minimal intervention on your part. Many keepers joke that the challenge is not getting Cherry Shrimp to breed, but rather managing the exponential population growth that follows.

Unlike many other shrimp species, Neocaridina davidi produces fully formed miniature shrimp rather than larvae that require brackish or saltwater conditions. This direct development means the entire life cycle takes place in freshwater, with no need for a separate breeding setup.

Sexing: Males are smaller, slimmer, and typically paler or more translucent than females. Females are larger, rounder, more deeply coloured, and, when mature, display a visible saddle (a yellowish or greenish patch behind the head where eggs develop before being transferred to the pleopods).

Mating process: When a female moults, she releases pheromones that trigger the male swimming frenzy described earlier. Males frantically search for the female, and mating occurs quickly once a male locates her. Shortly after mating, the female transfers fertilised eggs from her saddle to her pleopods (swimmerets beneath the abdomen), where she carries them for approximately 28–35 days. During this time, she constantly fans the eggs with her pleopods to keep them oxygenated and free of fungus. A berried (egg-carrying) female is an unmistakable sight, a cluster of small, round, yellowish-green eggs visible beneath her tail.

Shrimplets: When the eggs hatch, tiny, fully formed shrimplets emerge, typically 20–30 per clutch, though this varies with the size and age of the female. Newborn shrimplets are approximately 2 mm long and are immediately independent, foraging on biofilm. They require no special care but benefit enormously from dense moss, leaf litter, and biofilm-enhancing foods that provide food sources small enough for their tiny mouthparts. In a well-planted tank with no predators, survival rates are very high.

Optimising breeding: To encourage maximum breeding output, maintain the temperature at 22–24 °C, ensure stable water parameters, provide a calcium-rich diet for healthy moulting cycles, and keep the tank free of predators. A mature, heavily planted tank with plenty of biofilm will support the fastest colony growth.

Colony management: Under ideal conditions, a colony of Red Cherry Shrimp can grow rapidly, potentially doubling every two to three months. In a small tank, this can eventually lead to overpopulation, which manifests as reduced breeding rates, smaller clutch sizes, and declining water quality. Options for managing population include rehoming excess shrimp, selling or trading them, moving some to a new tank, or introducing a controlled number of small, shrimp-safe fish that will consume some shrimplets without eliminating the colony entirely.

Maintaining colour quality: Over many generations in a closed colony, Red Cherry Shrimp may experience some colour regression, offspring gradually becoming less vivid. This occurs because less colourful males successfully breed, diluting the red pigment over time. To counteract this, periodically cull lower-grade specimens from the breeding population or introduce fresh, high-grade stock to reinvigorate the gene pool.

Common Diseases

Red Cherry Shrimp are generally robust, but they are not immune to health issues. Most problems stem from poor water quality, unstable parameters, or the inadvertent introduction of pathogens. Prevention through good husbandry is always preferable to treatment, as shrimp are extremely sensitive to many common aquarium medications.

  • Moulting problems: Failed or incomplete moults are among the most common causes of death in shrimp. They are typically caused by insufficient mineral content in the water (low GH), sudden parameter swings, or poor nutrition. Ensure adequate calcium and magnesium levels by maintaining a GH of 6–12 dGH, and avoid large, sudden water changes that alter parameters dramatically. Adding cuttlebone or mineral supplements can help.
  • Bacterial infections: These can manifest as opaque or milky patches on the body, pink or reddish discolouration on the underside, or general lethargy. Bacterial infections often arise in tanks with poor water quality or after physical injury. Improving water conditions is the first line of treatment. In severe cases, Indian Almond Leaves and salt baths (performed carefully in a separate container) may help, but antibiotics should be used as a last resort and only if confirmed shrimp-safe.
  • Vorticella: This protozoan parasite appears as white, fuzzy growths on the shrimp’s body or rostrum, often resembling tiny cotton balls. It is typically associated with poor water quality. Improving tank hygiene and performing more frequent water changes usually resolves the issue. Salt dips (one teaspoon of aquarium salt per litre, for 30–60 seconds in a separate container) can also be effective.
  • Scutariella japonica: These tiny parasitic worms appear as thin, white, thread-like projections around the shrimp’s head and rostrum. Whilst they are more of a nuisance than a serious threat, heavy infestations can weaken the shrimp. Salt dips are the most common treatment. The parasites are typically shed during moulting, so ensuring healthy moult cycles helps control the population.
  • Ellobiopsidae (Green fungus): A rare but serious parasitic infection that presents as bright green, fuzzy growths, usually near the pleopods. There is no reliable cure, and infected shrimp should be quarantined or removed from the tank to prevent spread.
  • Muscular necrosis: Characterised by a white, opaque area within the muscle tissue of the tail or body. It is often caused by severe stress, bacterial infection, or sudden environmental changes. There is no proven treatment, and affected shrimp frequently do not recover.
  • Planaria and hydra: Whilst not diseases of the shrimp themselves, these organisms can prey on shrimplets and are indicators of overfeeding. Planaria can be treated with fenbendazole-based products (such as No Planaria or Panacur), which are generally considered shrimp-safe at appropriate dosages. Hydra can be treated similarly. Always follow dosing instructions carefully.

As a general rule, quarantine all new shrimp, plants, and hardscape before adding them to an established colony. A two to four week quarantine period in a separate tank allows you to observe for signs of disease or parasites before risking your main population. Additionally, always avoid copper-based medications in any tank containing or intended for shrimp.

FAQs

How many Red Cherry Shrimp should I start with?

A starting colony of 10–20 shrimp is ideal. This provides a sufficient number to ensure both sexes are represented and allows for natural social behaviour. With a group of this size, you should begin seeing berried females within weeks if conditions are favourable. Starting with fewer than six shrimp is not recommended, as the colony may struggle to establish itself and breeding pairs may not form reliably.

Do Red Cherry Shrimp need a heater?

Not necessarily. Red Cherry Shrimp tolerate temperatures from 18–28 °C, and in many homes, the ambient room temperature falls comfortably within this range for most of the year. However, if your home regularly drops below 18 °C during winter, particularly overnight, a small, adjustable aquarium heater set to around 20–22 °C is a sensible investment. Consistency is more important than a specific temperature; avoid letting the tank fluctuate by more than 2–3 °C within a 24-hour period.

Can I keep Red Cherry Shrimp with Betta fish?

This is one of the most frequently asked questions in the hobby, and the honest answer is that it depends entirely on the individual Betta. Some Betta fish are relatively docile and will coexist with shrimp without issue, whilst others will actively hunt and consume every shrimp in the tank. The risk is always present, and even a seemingly peaceful Betta may one day decide to snack on your shrimp. If you wish to attempt this combination, use a heavily planted tank of at least 40 litres with abundant hiding places, and be prepared for losses. A species-only tank remains the safest option for a thriving shrimp colony.

Why are my Red Cherry Shrimp losing their colour?

Several factors can cause colour loss in Red Cherry Shrimp. The most common causes include stress from poor water quality or recent transfer to a new tank, a light-

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