Bamboo Shrimp (Wood/Fan Shrimp) Care Guide

The bamboo shrimp is a big, gentle filter-feeder that fans suspended food out of the current — not a grazer — and that one fact decides whether it lives or dies. In a clean, still or over-filtered tank it slowly starves, which is by far its commonest killer, so it needs real flow, a mature water column and target-fed powdered food rather than algae.

Bamboo Shrimp (Wood/Fan Shrimp) at a glance

The sourced figures the welfare engine uses to judge Bamboo Shrimp (Wood/Fan Shrimp) — the parseable key facts.

Where it comes from

Bamboo shrimp are Atyopsis moluccensis (De Haan, 1849), atyid shrimp from the flowing freshwater hillstreams and rivers of the Indo-Pacific — Sri Lanka, India, Thailand and the islands of Sumatra, Java, Bali, Borneo and the Philippines among them. In the wild they perch on rocks, roots and wood facing into fast, well-oxygenated, particle-carrying water and strain plankton and detritus from the flow with fan-like front appendages. That biotope explains everything about the care: flow is not a luxury but the feeding mechanism, the water needs to be "lived-in" and rich in suspended particles rather than clinically clean, and the shrimp wants hardscape high in the current to sit on. They are amphidromous — adults live in fresh water but the larvae need brackish or near-marine water to develop — which, exactly like Amano shrimp, is why they cannot breed in a freshwater tank and why almost all stock is wild-caught.

Did you know?

• It fishes with feather-dusters: instead of pincers it unfurls four pairs of fan-shaped, setae-fringed appendages into the current to strain plankton — a living, self-cleaning filter.
• It can starve in a tank full of food, because it only eats suspended particles from moving water, so it can waste away in a clean, still tank while other shrimp thrive.
• Its posture is a feeding gauge: fans held up in the current means fed and healthy; fans scraping the substrate means hungry.
• It changes colour with mood and moult — brown, red, green, tan, even bluish — and can shift hue within seconds; a persistently red shrimp is a stressed, hungry one.
• It can't breed in your tank by biology: amphidromous like Amano, its larvae need near-seawater to develop, so all stock is wild-caught.
• One trade name covers two species — bamboo or fan shrimp can be A. moluccensis or the smaller A. spinipes; tell them apart by rostrum teeth (7-16 vs 2-6).

Tank size — and why

Around 20 US gallons is the strong consensus minimum, and this is genuinely not a nano animal despite being "just a shrimp." The reason is a combination of size, flow and food supply rather than swimming territory: an 8 to 10 cm shrimp that feeds on suspended particles needs enough volume and length to generate strong, directional flow, and a mature, biologically active water column with enough drifting food to sustain a large filter-feeder. A small or sterile tank can deliver neither, which is why under-tanking quietly starves it. One specialist source allows a 10-gallon floor but stresses a 60 to 80 cm tank length for proper flow.

As a guide, a 20-gallon tank comfortably suits about 6–9 Bamboo Shrimp (Wood/Fan Shrimp) as a single-species display, leaving room for tankmates.

Water parameters in practice

Chemistry is the easy part for this species; flow and food matter far more than any exact number. It is comfortable at about 22 to 26 °C (tolerant roughly 20 to 29 °C), pH 6.5 to 7.5 (tolerated to ~8.0), with general hardness around 6 to 10 dGH and carbonate hardness about 3 to 6 dKH. As with every shrimp, those minerals are not optional: it hardens a new exoskeleton after each moult using dissolved calcium and carbonate, so too-soft or unstable water makes moulting risky. Stability beats precision — it tolerates a wide band but large, careless water changes and temperature shocks stress it and complicate moults. Its hillstream origin means it wants well-oxygenated water, which the same strong flow that feeds it conveniently provides. Copper is lethal to all inverts and ammonia and nitrite must read zero, so cycle the tank fully and drip-acclimate wild-caught stock gently.

Will it thrive in your water?

The comfortable range for Bamboo Shrimp (Wood/Fan Shrimp) is about 20–27 °C (68–81 °F) and pH 6.5–7.5. Test your own tap water against it below.

These are the sourced comfortable ranges. Stable water matters more than chasing an exact number — a steady reading inside the band beats a "perfect" one that drifts. Some fish also need a particular water hardness (GH); where that applies, the prose above covers it.

Diet & feeding

This is the make-or-break section. The bamboo shrimp is a suspension feeder, not a grazer: it opens four pairs of setae-fringed fans into the current and strains out micro-particles, then transfers them to its mouth. The flow delivers the food, so without current the food never reaches the fans. It cannot eat shrimp pellets or other large foods the way grazing shrimp do — it needs fine, suspended food. Feed powdered or finely crushed foods such as powdered shrimp food, crushed flakes, spirulina powder, baby-shrimp and fry foods, and liquid plankton or invertebrate foods, released into the current just upstream so they drift straight into the open fans. Small amounts two to three times a day suit a big filter-feeder better than one daily lump. Do not rely on algae or biofilm and never treat it as a "clean-up crew" — that framing is the single most dangerous misconception for this species, because it cannot graze surfaces effectively and will starve in a tank full of food meant for other animals.

Gear & setup

Three things matter: flow, maturity and perches. Provide moderate-to-strong, directional current with an oversized filter return, a powerhead or a circulation pump aimed across the perches — water flow is essential, not decorative. The tank must be fully cycled and mature, with biofilm and a living, particle-rich water column; an over-clean, brand-new tank has nothing for the fans to catch. Give it driftwood, rocks and sturdy plants positioned high in the current so it can sit elevated and fan, plus hiding places for the vulnerable day or two after a moult. It is shy and more active in dimmer light, so avoid harsh lighting. Keep a lid and a shrimp-safe intake, since a stressed shrimp in poor or still water can climb and escape.

Temperament & behaviour

A peaceful gentle giant — large but completely harmless, with no aggression, no nipping and no predatory behaviour. Newly added or recently moulted shrimp hide and grow bolder once settled, and it is somewhat crepuscular, often more active and confident in dim light. Its posture is a feeding gauge you can literally read: fans held up in the current means it is healthy and fed, while fans scraping or picking at the substrate is the classic starvation signal. It is not a shoaler but is gregarious, perching in small groups in the best flow where space and food allow — though because each shrimp is a large filter-feeder competing for fine food, small groups only work in a big, high-flow, food-rich tank, and many keepers run just one per 20 gallons unless the tank is much larger.

Group & social needs

Gregarious in principle, capacity-limited in practice. There is no intraspecific aggression, no territory and no sexual aggression, so multiples coexist peacefully; the only real limit is whether the tank can feed them all. Specialist sources describe groups of three or four perching together, but recommend roughly one shrimp per 20 gallons unless the tank is large (75-plus gallons for several). A single shrimp is perfectly fine and easier to feed well, so keeping one is a defensible default rather than a welfare compromise.

Compatible tank mates (preview)

A short, engine-cleared shortlist — the species TankStocking's welfare engine clears with Bamboo Shrimp (Wood/Fan Shrimp) and that suit its size and temperament best. Tap a name for its care guide, or use + to load the pairing in the planner.

• Amano Shrimp+Peaceful temperament, similar adult size
• Bronze Corydoras+Peaceful temperament, similar adult size
• Checker Barb+Peaceful temperament, similar adult size
• Cherry Barb+Peaceful temperament, similar adult size
• Croaking Gourami+Peaceful temperament, similar adult size
• Flame Tetra (Von Rio Tetra)+Peaceful temperament, similar adult size
• Ghost Shrimp (Glass/Grass Shrimp)+Peaceful temperament, similar adult size
• Glowlight Tetra+Peaceful temperament, similar adult size

This engine-cleared shortlist is Bamboo Shrimp (Wood/Fan Shrimp)'s tankmate surface for now — a dedicated tank-mates guide can follow for high-demand species.

Breeding & sexing

Effectively impossible in a home freshwater tank, and that is biology, not poor husbandry. Females carry eggs, but the hatched larvae need brackish-to-marine water — cited at roughly 33 to 34 g salt per litre, near seawater — before juveniles migrate back to fresh water; in pure fresh water the larvae die. The larval and metamorphosis phase runs on the order of 90 days through a planktonic stage needing constant fine food and shifting salinity, which is why home and even commercial breeding is rare and almost all stock is wild-caught. Sexing is possible with care: males have noticeably larger, thicker first walking legs, and the definitive marker is gonopore position (males at the base of the fifth pereiopods, females the third). Overall body size is an unreliable sexing cue. The realistic takeaway: enjoy them, don't expect babies.

Lifespan

Sources vary widely, but about 2 to 3 years is the honest typical figure, with several years possible under excellent care. The dominant hidden cause of a short life is slow starvation: because the filter-feeding and flow requirement is so often missed, many "one-year" deaths are chronic malnutrition rather than natural age — malnourishment and even starvation are very common with these shrimp. Other life-shorteners are failed or stressful moults in too-soft or unstable water, copper exposure, ammonia or nitrite in an uncycled tank, rough acclimation of wild-caught stock, and harassment by unsuitable tankmates. Because stock is wild-caught and shipped as adults, a shrimp may already be partway through its life at purchase, so choose active, plump, well-coloured (non-red) specimens.

Common mistakes

• Treating it as a grazer or clean-up crew — it is a filter-feeder, won't clear algae, and will starve if you assume biofilm feeds it. This is the biggest misconception.
• Too little flow — no current means the fans get no food and the shrimp slowly starves even with food in the tank. Add a powerhead or strong return across the perches.
• Keeping it in an over-clean or brand-new sterile tank with nothing suspended to filter — use a mature, lived-in tank.
• Feeding only pellets or not target-feeding — it can't eat pellets; it needs fine powdered food delivered into the current two to three times a day.
• Buying it as an easy beginner nano shrimp — the flow and target-feeding management make it intermediate, not beginner.
• Greedy, large or aggressive tankmates that either eat it (especially mid-moult) or hoover up its fine food before it reaches the fans.
• Soft or unstable water and careless big water changes that complicate moulting — keep GH and KH meaningful and changes gentle.
• Any copper in meds, algaecides or some ferts — read every label.
• Buying a red, thin, listless shop specimen — it's likely already starving; choose plump, actively fanning animals.

Signs of trouble

• Fanning or scraping the substrate with the fans instead of holding them up in the current — the classic starvation signal; fix the flow and add suspended food.
• Constant restless roaming of the tank rather than perching to filter — also a hunger sign.
• Turning red and staying red, with visible thinning — chronic hunger or stress colour, not a healthy morph.
• Hiding away from the flow when not moulting, or climbing toward the surface to escape — often a water-quality or flow distress signal.
• A failed or stalled moult, or visible shrinking at the moult — usually too-soft or unstable water and poor nutrition.

Is this fish right for you?

Don't buy a bamboo shrimp if you can't give it strong, directional flow and a mature, particle-rich tank, because without those it slowly starves — the defining welfare trap of the species. Don't buy it expecting an algae-eater or clean-up animal; it is a filter-feeder that cannot graze, and the "clean-up crew" framing will get it killed. Skip it as a true beginner shrimp unless you're willing to learn target-feeding with powdered food two to three times a day, and don't house it with cichlids, large or aggressive fish, crayfish, puffers, snail-eating loaches, or greedy fast feeders that out-compete it for fine food. There are no dyed or deformed morphs to worry about, but essentially all stock is wild-caught, so acclimate gently and accept you may receive an already-adult animal; avoid the red, thin, sunken specimens, which are usually already starving.

Bringing one home

Drip-acclimate slowly after shipping — stock is wild-caught and arrives stressed, and the shrimp is highly copper-sensitive and easily shocked by sudden swings in temperature, pH or hardness. Add it only to a mature, cycled, well-oxygenated tank with strong flow and elevated perches, give it cover for the soft day or two after a moult, and never use copper-based treatments.

Common questions

Why is my bamboo shrimp fanning the bottom or walking the substrate?

It's a starvation signal. A healthy bamboo shrimp holds its fans up in the current to filter; scraping the substrate or roaming the bottom means it isn't getting enough food. The fix is more flow and more fine suspended food, not more algae.

What do bamboo shrimp eat and how do I feed them?

They are filter-feeders that strain fine suspended particles from the current — they can't eat pellets. Feed powdered or finely crushed foods (powdered shrimp food, crushed flakes, spirulina powder, fry food, liquid invert foods) released into the flow just upstream so it drifts into their fans, two to three times a day.

Do bamboo shrimp need a lot of water flow?

Yes — strong, directional flow is mandatory because it's the feeding mechanism, not a luxury. Aim a powerhead or oversized filter return across their perches. Without current, food never reaches the fans and the shrimp starves.

Why is my bamboo shrimp red?

Colour shifts with mood and moult are normal, but a shrimp that turns and stays red, especially while looking thin, is usually signalling stress or hunger. Check flow, food and water quality.

Can I breed bamboo shrimp?

Effectively no, not in a home freshwater tank. The larvae need brackish-to-marine water (near seawater) to develop before juveniles return to fresh water, so a freshwater colony is impossible and nearly all stock is wild-caught.

Are bamboo shrimp good for beginners?

Not really — they're intermediate. They look like an easy big shrimp, but the flow and target-feeding requirements mean a beginner who assumes they eat algae will slowly starve them, which is the most common way they die.

Sources & confidence

Sources & confidence (9 species)

These back the Bamboo Shrimp (Wood/Fan Shrimp) figures and the previewed tank mates above. Each figure is read from the TankStocking species database (v2026.06); below is the care reference behind it and how confident we are in that data. Confidence reflects the source quality, not whether any pairing is safe. Full source list and the welfare model are on the methodology page.

• Bamboo Shrimp (Wood/Fan Shrimp) Atyopsis moluccensis — Aquariadise (aquariadise.com/caresheet-bamboo-shrimp-atyopsis-moluccensis) high confidence
• Amano Shrimp Caridina multidentata — Aquarium Co-Op amano shrimp care; Aquadiction high confidence
• Bronze Corydoras Corydoras aeneus — Seriously Fish (seriouslyfish.com/species/corydoras-aeneus) high confidence
• Checker Barb Oliotius oligolepis — Seriously Fish — Oliotius oligolepis (https://www.seriouslyfish.com/species/oliotius-oligolepis/) high confidence
• Cherry Barb Puntius titteya — Seriously Fish (Puntius titteya) seriouslyfish.com/species/puntius-titteya high confidence
• Croaking Gourami Trichopsis vittata — Seriously Fish (seriouslyfish.com/species/trichopsis-vittata) high confidence
• Flame Tetra (Von Rio Tetra) Hyphessobrycon flammeus — AquaInfo / Aquarium Wiki (Hyphessobrycon flammeus) high confidence
• Ghost Shrimp (Glass/Grass Shrimp) Palaemonetes paludosus — The Shrimp Farm (theshrimpfarm.com/posts/shrimp-caresheet-ghost-shrimp-palaemonetes-sp) medium confidence
• Glowlight Tetra Hemigrammus erythrozonus — Seriously Fish (seriouslyfish.com/species/hemigrammus-erythrozonus) high confidence

Care-guide sources (8)

This guide synthesises the references below; where they disagree, the range and the disagreement are noted in the text above. The figures in the key-facts box are read from the TankStocking species database (v2026.06). Full welfare model on the methodology page.

• Wikipedia — Atyopsis — genus authority (Chace, 1983), family Atyidae, two species (A. moluccensis / A. spinipes), rostrum-tooth separator (7-16 vs 2-6), Indo-Pacific distribution, filter-feeds with feather-like claspers, moult vulnerability
• WoRMS — Atyopsis moluccensis (De Haan, 1849) — accepted name + authority, original combination Atya moluccensis, synonym Atya lineolata De Man, 1892
• Aquariadise — Caresheet: Bamboo shrimp (Atyopsis moluccensis) — size 2-3 in (max >4 in), lifespan 2-3 yr, 20 gal min, temp 20-25 °C, pH 6.5-7.5, high flow/hillstream, four feathery fans, target-feed powdered food upstream, substrate-scraping = starvation, brackish larvae (33-34 g/L), moult hiding, avoid cichlids/bettas
• aquariumbreeder — Bamboo Shrimp: Detailed Guide — size 8-10 cm, lifespan up to 6 yr, 10-gal min / 60-80 cm optimal, temp 22-28 °C, pH 6.5-7.5, GH 6-8 / KH 2-6 / TDS 150-200, four pairs of filtering fans, can't eat pellets, substrate-fanning = too little flow/food, males larger first legs / gonopores 5th vs 3rd, amphidromous (~33-34 g/L, ~90 days), moult every 4-8 wks, gregarious 3-4
• AquariumStoreDepot — Bamboo Shrimp Care Guide — size 2-4 in, lifespan 1-3 (guide 4-6) yr, 20 gal min, temp 68-85 °F, pH 6.5-8.0, KH 3-10, 'a bamboo shrimp walking the bottom is not getting enough food, fix the flow,' powdered/crushed/liquid foods, males thicker first legs, brackish larvae, peaceful/shy
• ShrimpKeepers — Bamboo Shrimp Care Guide — lifespan 2-3 yr, 20 gal min, temp 73-79 °F (68-82), pH 7-7.5, GH 6-10 / KH 3-6, 'WATER FLOW IS ESSENTIAL,' catches microscopic particles from the water column, 'if picking at substrate instead of fanning, it's STARVING,' red coloration = stress/hunger, powdered foods, brackish larvae
• Aquarium Tidings — Bamboo Shrimp Complete Care Guide — size up to 3 in, 20 gal min (75+ for multiples), temp 75-81 °F, pH 6.5-8.0, current feeds them, roaming = hunger, 'malnourishment and even starvation are very common with these shrimp,' moult ~every 2 months, one per tank unless 75+ gal
• AquariumSource — Bamboo Shrimp 101 — size ~3 in, lifespan 1-2 yr, 20 gal per shrimp, temp 70-78 °F, pH 6.5-8.0, KH 3-10, decent current necessary for feeding, fan filter-feeding, moult every 45-65 days, 'breeding in captivity is pretty much out of the question,' peaceful tankmates

More on Bamboo Shrimp (Wood/Fan Shrimp)

Related guides on TankStocking — each scored by the same welfare engine as the planner.

This care guide is a sourced planning reference, not veterinary advice — individual fish, filtration and maintenance all matter. Cycle the tank, test your water, and observe your fish. How TankStocking works →