Easy to intermediate
Chocolate Cherry Shrimp (Neocaridina davidi)
18–26°C · pH 6.5–8 · 30L
£13.99
Striking Indian High Fin Barb (Oreichthys cosuatis) with tall finnage and lively character - a rare, peaceful schooling fish ideal for planted community aquariums. Sold as a group of 6. Order with live arrival guarantee.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Photos are AI-enhanced, so the animal may show subtle colour or marking differences.
Oreichthys cosuatis
Indian High Fin Barb are a shoaling species — they need 6+ to feel safe and show their full colour. Larger shoals stay calmer, eat better, and look stunning.
Striking Indian High Fin Barb (Oreichthys cosuatis) with tall finnage and lively character - a rare, peaceful schooling fish ideal for planted community aquariums. Sold as a group of 6. Order with live arrival guarantee.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Photos are AI-enhanced, so the animal may show subtle colour or marking differences.
Maintain these water conditions for optimal health and vibrant colors
If you want a peaceful, unusual schooling fish that stands out without dominating the aquarium, the Indian High Fin Barb is a brilliant choice. Sold here as a group of 6, Oreichthys cosuatis is a rare Indian barb species UK hobbyists increasingly seek when looking for tropical fish for sale UK that is genuinely different from the usual danios and tetras. This small cyprinid from West Bengal grows to around 4 cm, lives for roughly 3 years, and shows its best colour and finnage in a well-kept planted community aquarium. Males develop the dramatic raised dorsal that gives this rare barb with high dorsal fin its name, and the group dynamic makes them especially rewarding to watch. They are peaceful, midwater fish that suit a high fin barb community tank, and they are often recommended for confident beginners and aquarists who want something less common. Whether you want to buy fish online, buy tropical fish UK, or are comparing a local tropical fish shop with a specialist online source, this group offers character, movement, and real species interest in one compact package.
Oreichthys cosuatis belongs to the carp and minnow family, a large group that includes barbs, rasboras, danios, and many popular community species. In the hobby it is still an uncommon barb for community tanks, especially compared with larger, more familiar barbs. Aquarists often weigh Oreichthys cosuatis or rosy barb, but this species stays much smaller, is gentler in temperament, and suits quieter planted aquariums better.
Oreichthys cosuatis comes from South Asia, with records from India and Bangladesh, especially the Ganges and Brahmaputra drainage systems and areas linked to West Bengal. In the wild these fish live in calm or slow-moving freshwater habitats such as ponds, canals, ditches, vegetated stream margins, and shallow floodplain waters. That matters in the aquarium, because their ideal environment is not a fast-flow river tank but a gentle, stable, plant-rich setup.
Natural waters in these regions are warm but not extreme, so the high fin barb ideal temperature sits in the lower tropical range rather than the hottest community settings. For this species, aim for 22-24°C as a sweet spot, with short-term tolerance across a 20-26°C band. This makes them easier to mix with cooler-end community species than fish that demand a constant 27-28°C.
In nature they forage for tiny invertebrates, organic debris, algae films, and fine food particles among plants and soft sediment. Their behaviour reflects that origin: they are alert but not frantic, and they appreciate cover. They will browse surfaces and pick at tiny edible matter, but they are not a clean-up species and should be fed properly rather than relied on for tank maintenance.
Because this West Bengal cyprinid rarely appears in general stock lists, it is a smart find for anyone who wants something more distinctive than common tetra lines yet still suitable for a peaceful home aquarium.
Mimicking the natural habitat of Indian High Fin Barbs with gentle flow, dense planting, open swimming space, and a dark soft substrate improves confidence, colour, and display behaviour. Fish kept in sparse, brightly lit tanks tend to hide more and show less finnage.
A proper indian high fin barb care guide starts with space, stability, and group size. Although they are small fish, they are not best kept as a pair or trio. High fin barb schooling is central to their welfare, so keep at least 8 where possible. This product is sold as a group of 6, which gives you a strong starting social unit, while a larger school in a mature aquarium produces the most natural behaviour. The high fin barb minimum tank size is 60 litres, though a 75-90 litre aquarium is better for a settled school and mixed community stocking.
For Indian High Fin Barbs, a 60 cm footprint is workable, so a 60 cm tank can house a small group. Anything shorter than 60 cm is too limiting for long-term schooling behaviour. For a community setup, a longer 80-90 cm aquarium gives much better swimming room and more stable water chemistry. In practical terms, high fin barb tank size should prioritise horizontal length over height.
Indian High Fin Barbs do best at 20-26°C, with 22-24°C ideal, and the temperature should stay stable rather than swinging from day to night. An accurate, reliable heater is important, especially in winter; set it carefully and verify the reading with a separate thermometer. Keep pH between 6.0 and 7.5 with soft to moderately hard water around 5-15 dGH. This species rewards stable, slightly acidic to neutral water more than chasing exact numbers, so the high fin barb ph level matters less than consistency and clean water.
Use gentle to moderate filtration rather than a powerful river-tank current. Sponge filters, internal filters with spray bars, or adjustable external filters all work well. Aim for water that is clean and well oxygenated but calm; strong flow makes this species less comfortable and reduces natural foraging behaviour. Position the heater where water movement distributes heat evenly, usually near the filter outflow, so the temperature stays steady with no cool spots.
Use a soft sand or smooth fine-gravel substrate, as these fish often forage low in the water column and appreciate a natural bottom. Dense but manageable planting such as Java fern, Cryptocoryne, Anubias, floating Salvinia, and fine-leaved stems breaks up sightlines and helps the group feel secure, making them an excellent centrepiece shoal for a planted tank. Keep lighting moderate and diffuse it with floating plants if the fish seem shy; full-spectrum daylight shows their warm body tones most accurately.
Always cycle the aquarium for 4-6 weeks before adding fish. A stable nitrogen cycle is one of the most important aquarium requirements, and it prevents the ammonia and nitrite spikes that kill newly introduced schooling fish.
The indian high fin barb diet is omnivorous. In the wild they pick at tiny crustaceans, insect larvae, biofilm, and plant-associated food particles. In the aquarium the best approach is variety. Their mouths are small, so choose fine foods they can eat comfortably in a minute or two. Good high fin barb feeding means small portions offered regularly, with enough diversity to support finnage, colour, and breeding condition.
Use a quality micro pellet or fine flake as the staple. Look for small omnivore formulas with fish meal, insect protein, spirulina, and added vitamins. This species does especially well when dry foods are paired with frozen foods several times a week.
Supplement with frozen daphnia, cyclops, baby brine shrimp, and finely chopped bloodworm. These foods encourage stronger colour and more active schooling, and live foods are useful when conditioning pairs for indian high fin barb breeding. In a planted setup they may browse soft films, but that does not replace deliberate feeding or proper algae management.
Indian High Fin Barbs may peck at soft growths, but they are not dedicated algae eaters. If algae is building up, solve the root cause with lighting control, nutrient balance, and regular maintenance rather than expecting the fish to fix it. No fish is a substitute for water testing and good husbandry.
Feed once or twice daily and offer only what the group can finish in about 60-90 seconds. Overfeeding quickly fouls small aquariums and contributes to nuisance algae. In a mature community they will also pick at tiny leftovers, but that should never replace measured, deliberate feeding.
| Time | Food | Amount |
|---|---|---|
| Morning | Micro pellet or fine flake | Small pinch, fully eaten in 1 minute |
| Evening | Frozen daphnia, cyclops, or baby brine shrimp | Very small portion, no leftovers |
Overfeeding causes ammonia spikes, cloudy water, and excess waste. It also feeds nuisance algae and can make owners think their filter or heater is failing when the real issue is simply too much food.
Pair your Indian High Fin Barbs with other peaceful species and build a balanced community around small pellets, frozen foods, and gentle filtration.
Oreichthys cosuatis is a compact barb with a rounded body, soft metallic sheen, and the signature high dorsal fin in mature males. Adults usually reach about 4 cm in aquaria, though some references mention larger total lengths in the wild. The body colour is generally beige to warm silver-brown with subtle darker edging and a refined, understated pattern rather than bold striping. That calm elegance is exactly why many hobbyists looking for a rare Indian barb species UK choose them over louder, flashier fish.
Males are the show fish. They tend to be slightly larger, more colourful, and develop the raised dorsal that gives the species its name, while females are rounder-bodied and more reserved in finnage. In a settled group, males display to one another with fins extended, making the school look more dramatic than its small size suggests. They are interesting to watch without being difficult to manage, which makes them a fair choice for confident beginners.
For the best appearance, use a dark substrate, green planting, and stable lower-end tropical conditions. A longer tank helps the group move naturally, while balanced lighting prevents washed-out colour. In person the fish often look even better once settled, especially against wood, leaf-litter tones, and gentle planting.
Indian high fin barb compatible fish are peaceful, similarly sized species that enjoy comparable water conditions and do not bully shy shoalers. This is a classic community tropical fish uk species, but not one for rough company. Their calm nature suits a planted community better than a busy, aggressive barb mix, so the best tropical fish tank mates are small rasboras, peaceful tetras kept at moderate temperatures, gentle bottom dwellers, and other non-nippy schooling fish.
Choose fish that will not outcompete them at feeding time. Good companions include small rasboras, ember-type tetras in cooler tropical settings, pencilfish, and calm bottom feeders such as Corydoras in suitable temperature ranges. Browse our wider tropical fish for sale online selection and look for peaceful community species rather than territorial cichlids. Indian High Fin Barbs also work beautifully in a species-led planted aquarium where their own social behaviour becomes the main display.
Because this species is gentle, it is not suited to boisterous showcase tankmates or large, bold cichlids. Peaceful compatibility and matched water chemistry matter far more than stocking the most eye-catching fish.
Avoid fin nippers, large barbs, aggressive cichlids, and hyperactive species that dominate food. The cichlids listed below are excellent fish in the right aquarium, but they are not suitable high fin barb tank mates for most setups because they are too territorial, too large, or need very different conditions.
| Species | Compatible? | Notes |
|---|---|---|
| Thorichthys Maculipinnis - Elliot's Cichlid | ⚠️ Caution | Too robust for a small, shy barb group in most tanks |
| Guianacara Dacrya - South American Cichlid | ⚠️ Caution | Possible only in very large, carefully planned communities |
| Yellow Elongatus Cichlid - Chindongo Elongatus | ❌ Avoid | Mbuna aggression and water-chemistry mismatch |
| Kiriza Yellow Cichlid - Tropheus Moorii | ❌ Avoid | Unsuitable temperament, diet, and setup requirements |
In a 60 litre species-focused aquarium, keep 8-10 Indian High Fin Barbs, adding shrimp only if they are already established and heavy planted cover is present. In an 80-90 litre setup, a school of 8-12 can be combined with a small group of peaceful bottom fish. Match size, temperament, and temperature first; if you are following a beginner stocking plan, keep it simple and avoid mixing too many species at once.
They are generally safe with larger snails and often ignore adult shrimp, although tiny shrimplets may be eaten. They should not be purchased as a clean-up crew, and no fish replaces routine maintenance.
Always use a quarantine tank for 2-4 weeks before adding new fish to a display aquarium. This is one of the best ways to prevent parasites, bacterial outbreaks, and stress-related losses in a peaceful school.
Indian high fin barb breeding is moderate rather than difficult, but success depends on conditioning, clean water, and protecting the eggs. Males show stronger dorsal development and more display behaviour, while females become fuller-bodied when carrying eggs. To breed them you need a separate spawning setup, gentle filtration, fine-leaved plants or spawning mops, and stable water quality.
Use a 30-45 litre breeding tank with soft, slightly acidic to neutral water and a temperature around 23-24°C. Add a sponge filter and clumps of moss or synthetic spawning media. Keep ammonia and nitrite at zero, nitrate low, and pH around 6.5-7.0. In practice the only chemicals you need are a good dechlorinator and reliable test kits, not random additives.
Condition adults with live or frozen foods for 1-2 weeks. Males intensify in colour and begin displaying, and spawning usually occurs among plants where adhesive eggs are scattered. Egg colour varies with light and development; the real concern is whether the eggs are fertilised and protected from fungus and predation.
Remove the adults after spawning, as they may eat the eggs. Gentle aeration and very clean water reduce losses. Fry are tiny and need infusoria or powdered fry foods at first, followed by baby brine shrimp. Keep the tank spotless with small daily water changes; with fry, consistency matters more than chasing numbers.
Use dim lighting and a dark tank base during the first few days after spawning. This often reduces stress, limits fungal spread on the eggs, and helps tiny fry settle before stronger feeding begins.
Many aquarists compare Indian High Fin Barbs with other small community fish before they buy Oreichthys cosuatis UK. The most common comparison is with the Rosy Barb. Both are cyprinids, but they suit different aquariums. If you want a compact, peaceful, planted-tank fish with subtle beauty and interesting social display, Oreichthys cosuatis is usually the better choice.
| Feature | Indian High Fin Barb | Rosy Barb |
|---|---|---|
| Max Size | About 4 cm | 10-15 cm |
| Care Level | Moderate | Easy to moderate |
| Temperature | 20-26°C | 18-24°C |
| Best For | Peaceful planted nano-to-medium community | Larger active community aquariums |
This settles the common Oreichthys cosuatis or rosy barb question. Rosy Barbs are bigger, bolder, and more active. Indian High Fin Barbs are smaller, more refined, and better for aquarists who want a gentle school with less risk of fin nipping. They are also a more distinctive pick if you are building a specialist collection around unusual species rather than standard shop staples.
If you are also considering colourful cichlids such as Aulonocara Sp Neon Red Calico Peacock, Rubin Red Peacock Cichlid - Aulonocara, or Aulonocara kandeense, remember those fish need a very different aquarium style. Indian High Fin Barbs are for calm planted communities, not rocky African cichlid systems. Choose them when you want elegant movement, subtle colour, and a true shoaling display.
Good Oreichthys cosuatis care is mostly about prevention. Healthy fish hold their fins open, school calmly, feed eagerly, and show clean eyes and intact scales. Because they are small and peaceful, they can be stressed by poor handling, unstable water, or rough tankmates. Stress is often the first step toward common aquarium ailments such as ich, bacterial fin damage, and wasting linked to internal parasites.
Watch for clamped fins, isolation from the school, rapid breathing, faded colour, or refusal to eat. If the fish hover near the surface, test oxygen and temperature immediately, as warm water or poor circulation can reduce dissolved oxygen quickly in a small aquarium.
Most clarity problems, including cloudy or green water, come from overfeeding, immature filtration, excess light, or inadequate maintenance. Test ammonia, nitrite, nitrate, and pH regularly rather than guessing, and change 20-30% of the water weekly with temperature-matched, dechlorinated water. Rinse media in old tank water, remove uneaten food, and vacuum debris lightly so you keep beneficial bacteria while keeping the water clear.
Use a separate hospital or quarantine setup for treatment whenever possible, as a simple sponge-filtered tank is safer than medicating the display. Choose treatments based on a clear diagnosis, not guesswork, and avoid mixing medications unless the manufacturer specifically states it is safe.
Never medicate blindly. Many losses happen because fish are treated for the wrong problem. If shrimp or snails are present, avoid medications that may harm invertebrates, and always check oxygen levels when raising temperature during treatment.
High fin barb behaviour is one of the species' biggest selling points. They are peaceful, alert, and social, with a loose shoaling style that tightens when they are startled. In a proper group, males display their dorsal fins to one another without the serious aggression seen in many larger barbs. This makes the high fin barb school size important: too few fish often means shyness, while a larger group brings confidence.
They spend most of their time in the middle of the tank, moving in and out of plant cover. They are not frantic swimmers and rarely harass tankmates. In a settled aquarium they forage delicately and respond quickly at feeding time, which is why many hobbyists value them as a quieter alternative to more common shoaling fish.
To encourage natural behaviour, provide open water at the front, planting at the back and sides, and keep the group large enough to feel secure. A calm environment with a stable temperature and clean water will always produce better displays than a crowded mixed tank with incompatible fish.
Indian High Fin Barbs are not a mass-market fish. They are a specialist species, and that matters when choosing where to buy tropical fish UK or buy live fish online uk. Customers usually want two things: healthy stock and accurate care information. This species needs both.
Our groups are selected for active schooling behaviour, clear finnage, and strong condition before dispatch. Because Oreichthys cosuatis is often less available than standard community fish, careful holding and observation are especially important, so we monitor feeding response, body condition, and group behaviour before sale. That means the live fish for sale uk you receive arrives already settled and eating.
For delivery, fish are packed in insulated boxes using professional bagging methods, with heat packs added in cold weather when needed, and tracked transport keeps delays to a minimum. Every order is supported with practical acclimation guidance, including how to match temperature, dim the lights on arrival, and introduce a school safely. Whether you are searching for tropical fish for sale online, comparing the best place to buy tropical fish uk, or simply want a trustworthy source of tropical fish for sale UK, this is a species worth ordering with care and confidence.
If you are building a broader fish room or comparing species before you order, browse our full community and specialist tropical fish collection, our wider range of barbs for sale, or peaceful tetras for sale UK as community companions. For bold colour in a dedicated cichlid setup, consider Orange Blunthead Cichlid - Tropheus or Aulonocara Sp Neon Red Calico Peacock. If you prefer a South American look, Guianacara Dacrya - South American Cichlid offers very different behaviour and scale. Match temperament and water chemistry first, and build a balanced stocking plan rather than buying on impulse.
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