Freshwater Fish · Shrimp
Bamboo Shrimp
Atyopsis moluccensis
Fan-handed filter feeder that fishes the currentIntermediate
- Lifespan
- 1-2 years is typical; up to 5 when well fed, but many starve sooner
- Size
- 6-9cm (to ~3in); males larger, with a thickened, elongated front pair of legs
- Social needs
- Fine alone; peaceful in groups of 3+
- Time
- Normal tank care plus targeted feeding several times a week
- Cost
- Low-medium
- Diet
- Filter feeder — fine particle foods dosed into the current
Overview
What is this animal?
- The bamboo shrimp is the freshwater hobby's specialist filter feeder: instead of claws, its front limbs end in four feathery fans that it spreads into the current to net passing food particles.
- At 6-9cm (up to around 3 inches) it dwarfs the cherry and Amano shrimp elsewhere on this site, wearing warm amber-brown with a pale cream racing stripe down its back.
- That fan-feeding lifestyle is the entire care puzzle.
- It cannot graze algae the way other shrimp do, so it thrives only in a mature tank with genuine water movement and enough suspended food, which is why an animal routinely sold as easy earns an Intermediate rating here.
- Almost every bamboo shrimp in the trade is wild-caught in Southeast Asia, because its larvae need brackish water to develop and it has never been bred at scale in home tanks.
- That makes careful sourcing and gentle acclimation part of keeping this species responsibly.
Temperament
- The bamboo shrimp is entirely peaceful and physically incapable of harming a tankmate, because its fans cannot pinch anything.
- It is safe with plants, snails, dwarf shrimp, and any small, gentle community fish.
- It is content kept alone, and a group of three or more will simply line up along the same flow line without any squabbling.
- The danger runs the other way: large cichlids, goldfish, crayfish, and nippy barbs treat a slow, defenceless shrimp of this size as a target.
- Expect a mostly sedentary animal that claims one high-flow perch and occupies it for weeks, becoming more active toward dusk.
- The reward is not antics but the quiet spectacle of a living net fishing the current every day.
A good fit for
- Mature, well-established planted community tanks
- Keepers fascinated by unusual feeding behaviour
- Peaceful communities of small, gentle fish
- Aquarists willing to target-feed powdered foods
- Tanks with steady flow from a filter or powerhead
Common mistakes to avoid
- Spotless, over-filtered tanks — filter feeders starve in them
- Fan-sweeping the substrate, the classic starvation sign
- Soft, mineral-poor water causing stuck or failed moults
- Copper in any medication or fertiliser — lethal
- Rushed acclimation of already-stressed wild-caught stock
- Housing with large fish, crayfish, or nippy barbs
Enclosure
Minimum 75 litres (20 US gallons)
Fine alone or with company. Fine alone; peaceful in groups of 3+
- Plan on a 20 gallon long (75 litres) as a working minimum, and only a tank that has been running for several months; a freshly cycled aquarium is too clean to feed a filter feeder.
- Place wood or rock perches directly in the outflow of the filter or a small powerhead, because the shrimp will climb to the fastest water it can find and face into the stream.
- Keep the water at 72-82F (22-28C), pH 6.5-7.5, with moderate to firm hardness and ammonia and nitrite at zero.
- It needs enough dissolved minerals (GH and KH) to build each new shell, so do not run it in soft, near-RO water.
- Like all invertebrates it has no tolerance for copper in medications or fertilisers.
- Fit a tight lid, since a hungry or stressed bamboo shrimp is a determined climber.
- Provide dense plants or caves for moulting, because it hides for several days after each moult while its new shell hardens.
- If there is no strong flow anywhere in the tank, this is the wrong species for that tank.
Supplies
Setup
- Tank and stand
- Filter
- Heater and thermometer
- Substrate, plants and decor
- Liquid test kit
- Dechlorinator and starter supplies
Ongoing
- Specialised shrimp pellets or sticks
- Powdered spirulina or fine particle food (for filter-feeders)
- Golden pearls or a comparable fine powdered food
- Courgette and spinach for blanching
- Mineral or GH supplement for shell health
- Pipette or turkey baster for target-feeding into the current
- Small feeding dish to keep food off the substrate
- Fine net or tweezers for removing leftovers
Safe substrate: Inert aquarium gravel · Fine, smooth sand · Aquasoil for planted tanks
Care routine
Daily
- Check temperature and equipment
- Head-count and look everyone over
Weekly
- Feed sparinglyevery 3 days
- Top up evaporationevery 3 days
- Clean glass and clear algae
- Small, matched water change
- Test hardness as well as nitrogen
Monthly
- Trim and thin the plantsevery 2 weeks
- Check labels for copper
- Check supplies and reagent dates
- Rinse the filter media
Less often
- Replace chemical filter media (Carbon/Purigen)every 2 months
Vet: Quarterly colony and mineral review — every 3 months
Top resources for more info
Independent creators and organisations we would send a friend to. We have no affiliation with any of them, and nothing here is sponsored. Links checked 2026-09-19.
YouTubers
Mark's Shrimp TanksDwarf shrimp keeping, water parameters and breedingFlip AquaticsShrimp and nano fish care guides (run by a retailer)Girl Talks FishCare how-tos by fish type, tank setup and beginner mistakes
Sites
Go deeper
Diet
- A bamboo shrimp eats by holding its fans open in the current and combing off whatever they trap, so its food must be suspended in the water column, not sitting on the glass.
- In most home aquariums the natural supply of micro-particles is not enough, so target-feed several times a week: powdered spirulina, finely crushed flake, golden pearls, or baby brine shrimp released upstream so the cloud drifts through the fans.
- Read the behaviour like a gauge.
- A shrimp perched high with fans spread is feeding well, while one crouched low and sweeping the substrate with its fans is starving, and slow starvation is the single most common way keepers lose this species.
- A spotless, heavily over-filtered tank works against it, so aim for a mature system with some biofilm and mulm rather than surgical cleanliness.
- Never move it to a bare quarantine-style tank long term, because there is nothing there for it to eat.
Health
- Most losses happen in the first few weeks, because wild-caught stock arrives stressed and half-starved from the supply chain.
- Drip acclimate over at least an hour, and in the shop choose an animal that is actively fanning rather than one crouched low and picking listlessly at the gravel.
- It moults every month or two and then disappears into cover for days, which is normal, not illness.
- Leave the shed shell in the tank, since the shrimp eats it to recover minerals, and trace failed or stuck moults to unstable parameters or mineral-poor water.
- Colour shifts from deep brick red to muddy brown are normal and track mood, moulting, and background, so do not read them as disease on their own.
- Check every medication and plant fertiliser for copper before it goes anywhere near the tank, and with steady feeding expect 1-2 years at least, and up to 5 from a well-kept adult.
Is your enclosure big enough?
Minimum volume75 litres (20 US gallons)
CompanyFine alone or with company. Fine alone; peaceful in groups of 3+
Is this urgent?
In a fish tank the patient is usually the water. Test before you treat — dosing a healthy tank for a disease it does not have makes things worse.
Go now
Any detectable ammonia or nitrite in a stocked tankLarge water change now with dechlorinated, temperature-matched water. Stop feeding. Test again in 12 hours. Both are directly toxic. How toxic the ammonia reading is depends on pH and temperature, so the same number can be harmless or lethal.
NowFish gasping at the surface, or crowding the filter outflowIncrease surface agitation immediately, then test the water. Either the oxygen has crashed or the gills are being chemically burned. Both are hours-scale problems.
NowSudden deaths, more than one fish in a dayTest ammonia, nitrite, nitrate and temperature before doing anything else. Do not add medication yet. Multiple simultaneous deaths point at the water or the equipment, not at a pathogen.
NowToday
Flashing — repeatedly scraping against decor or substrateTest the water, then look closely for parasites. Irritation is either chemical or parasitic; the test tells you which before you medicate.
TodayWhite salt-grain spots over the body and finsBegin the appropriate treatment today and check the temperature. The parasite's life cycle is temperature-driven, and it multiplies with every cycle you wait.
TodaySoon
Clamped fins, hiding, or refusing food for more than two daysTest the water and review recent changes. Usually the earliest visible sign of a parameter drifting.
A few daysNever add a new fish to a tank that is not fully cycled, and never treat blind. A test kit is cheaper than the fish.
This is general guidance for a healthy adult, not a diagnosis. An exotics vet who knows your animal always overrides it — and the time to find one is before you need one.
What it really costs
Setup, monthly, first year and across a whole life, itemised and with the electricity worked out from the actual wattage. Published figures for the same animal disagree by a factor of four, so the calculator shows ranges rather than picking one.
Bedding and substrate
Substrate in an aquarium is a filter as much as a floor. Most of the biology lives in and on it.
Safe
Inert aquarium gravelRinse thoroughly before use. Grain size should be too large to swallow and too small to trap food.
safeFine, smooth sandCorrect for corydoras, kuhli loaches and anything that sifts. Their barbels wear away on sharp gravel.
safeAquasoil for planted tanksExcellent for plants, but it leaches ammonia for the first weeks. Cycle around it; do not stock into it.
safeBare bottomLegitimate for quarantine and grow-out tanks. Easy to clean, but it holds far less biological filtration.
safeWith a caveat
Crushed coral or aragoniteDeliberately raises hardness and pH. Correct for rift-lake cichlids, wrong for soft-water species.
with a caveatVery deep sand bedsAnaerobic pockets form below about 5 cm in still sand. Either keep it shallow or keep it stirred.
with a caveatPainted or coated gravelUsually fine, but coatings chip. Test a handful in a jar for a week first.
with a caveatNever
Sharp or angular gravel with bottom-dwellersWears down barbels and leads to infection in corydoras and loaches.
neverAnything containing metal, limestone of unknown origin, or shells in a soft-water tankSlowly alters chemistry in ways that are hard to diagnose later.
neverThis is our general list for freshwater fish. We have not built one specific to Shrimp yet.
My kit says 0.25 ppm. Is that dangerous?
A liquid kit measures total ammonia, but only the un-ionised fraction is really toxic, and that fraction is governed by pH and temperature — each whole pH unit multiplies it roughly tenfold. So the same reading can be nearly harmless in one tank and lethal in another; this works out which one you are in.
Compare with other animals
The same axes for every animal, side by side — the way the guides are written makes that a fair comparison rather than two articles.
Keep going
Shrimp, side by side
Same axes, same care guides — the honest way to choose between types.
See all Shrimp side by side →
