Bamboo Shrimp Care: Feeding, Flow, Tank Size and Lifespan

Quick answer: Bamboo shrimp (Atyopsis moluccensis), also called wood shrimp or fan shrimp, are peaceful freshwater filter feeders that grow to about 3 inches (7.5 cm) and live around 2 years. They need a mature tank of at least 20 gallons at 72 to 82 F, strong water flow and a raised perch where they can hold out their feathery fans to catch floating food. They’re hardy once settled, but they are not algae eaters. The mistake most people make is assuming bamboo shrimp will clean the tank. They can’t graze, and in a clean, still or brand new tank they slowly starve. Give them current and add fine powdered food a few times a week.

Bamboo shrimp at a glance

Do bamboo shrimp eat algae?

Not really. This is the most common misunderstanding. Bamboo shrimp have four feathery fans instead of the small grabbing claws other shrimp use. They hold these fans in the current and catch tiny particles floating past: microorganisms, crushed food and fine detritus. They can’t pick algae off glass or plants.

You may see them sweep their fans over the substrate. That’s not grazing algae. It’s a sign they’re hungry and there isn’t enough food in the water. If you want real algae eaters, see our algae eater fish guide or our Amano shrimp guide.

Bamboo shrimp vs vampire shrimp vs Amano shrimp

Here’s the honest part most bamboo shrimp guides leave out. Many bamboo shrimp die within a few months of purchase, and it’s almost never disease. They starve slowly. They’re sold to beginners as “cleanup crew” and placed in new, clean tanks with gentle filters, where there’s almost nothing floating for them to catch. They look fine for weeks because shrimp lose condition slowly, then they start sweeping the gravel and fading. If you can’t give them a mature tank, strong flow and target feeding, choose an Amano shrimp instead.

What bamboo shrimp look like

Bamboo shrimp have a thick, armored body in tan, brown or reddish tones, often with a pale stripe down the back. Color changes with mood, molting and diet, and many turn deep red when settled. Their most striking feature is the four fans at the front, which open like small umbrellas in the current.

Male or female. Males are usually larger, with noticeably thicker, stronger first walking legs. Females are slimmer, with a wider tail area for carrying eggs.

Bamboo shrimp tank setup

Tank size. At least 20 gallons, and a mature tank that has run for several months is far better than a new one. Older tanks have more biofilm and microorganisms in the water. A long tank like a 20 gallon long gives room for flow and perches.

Flow. Strong current is essential. Aim for filtration and flow of around 8 to 10 times the tank volume per hour. A powerhead or the outlet of a hang-on-back or canister filter works well. Point it so it passes over a perch.

Perches. Give them driftwood, rocks or sturdy plants placed in the current, so they can hold on and fan. You’ll often find all your bamboo shrimp crowded on the same spot near the filter outlet. That’s normal and a good sign. Our fish tank decorations guide covers safe wood and rocks.

Plants and cover. They need hiding places for molting. Mosses like java moss, java fern and other plants from our low light aquarium plants list are ideal. Mosses also trap fine food particles.

Filter intake. Cover intakes with a sponge, especially in smaller tanks.

No copper. Copper in medications or some fertilizers is deadly to all shrimp.

Water parameters

Stability matters more than exact numbers. Do steady weekly water changes of about 20 to 25 percent rather than big, sudden ones. Our aquarium water change calculator shows how much to change.

How to feed bamboo shrimp

This is the part that keeps them alive. In most home tanks, there isn’t enough natural food in the water, so you need to add it.

What to feed. Fine, floating foods: spirulina or chlorella powder, powdered fry food, finely crushed flakes, specialty filter-feeder foods, baby brine shrimp, rotifers and frozen copepods.

How to feed. Turn the filter down for a few minutes or keep it running, mix a small pinch of food in a cup of tank water, and squirt it upstream of the shrimp with a pipette or turkey baster so the current carries it to their fans.

How often. A small amount 3 to 4 times a week, or a tiny amount daily. Watch their fans. Shrimp actively fanning and bringing their fans to their mouths are eating.

Signs of hunger. Sweeping fans across the gravel, wandering the tank, staying away from the current, or fading color. If you see this, increase target feeding.

Don’t overdo it. Excess powder fouls the water, so keep portions small and watch nitrate.

Adding bamboo shrimp to your tank

Bamboo shrimp are sensitive to sudden changes in water. Drip acclimate them over 1 to 2 hours: float the bag to match temperature, then slowly add tank water to the bag or a container using an airline tube with a knot, until the volume has doubled two or three times. Then net the shrimp into the tank, leaving the shop water behind.

Here’s a short clip from our AQUA PLANET 128 channel of shrimp being acclimated. The same slow method works for bamboo shrimp.

Molting

Bamboo shrimp shed their exoskeleton every few weeks to months. Before a molt they may hide and stop eating. Afterward you’ll find an empty, shrimp-shaped shell. Leave it in the tank for a day so the shrimp can eat it and regain minerals.

Failed molts are the main health risk. The usual causes are very soft water, sudden big water changes, or poor nutrition. Keep GH in range, change water gradually, and feed a varied diet. Catappa or oak leaves add tannins and help some keepers get cleaner molts.

Not sure if it’s a molt or a dead shrimp? Our shrimp molting guide shows how to tell the difference and how to fix failed molts.

Bamboo shrimp tank mates

Bamboo shrimp are harmless to everything. They can’t catch fish or other shrimp, so the only question is whether their tank mates will bother them.

Can you breed bamboo shrimp?

Almost never at home. Females do carry eggs, but the larvae drift downstream to brackish water in the wild, and they need slowly increasing salinity to develop. Nearly all bamboo shrimp sold are wild-caught. Raising them is possible only with careful brackish setups and very fine live foods.

Common bamboo shrimp problems

Shrimp sweeping the gravel. It’s hungry. Add target feeding and more flow.

Shrimp always hiding. New tank, recent molt, or no good perch in the current. Give it time and add a perch near the filter outlet.

Shrimp died after molting, or got stuck in the shell. Usually unstable or very soft water, or big sudden water changes. Keep GH steady and change water gradually.

Faded or pale color. Stress, hunger or a recent molt. Check feeding and water quality.

Died within weeks of buying. Usually starvation in a new or clean tank, or shock from fast acclimation.

Climbing out of the water or onto the filter. Often poor water quality or low oxygen. Test the water and add surface movement.

FAQ

Do bamboo shrimp eat algae?

No. They’re filter feeders that catch floating particles with their fans. They can’t graze algae like Amano shrimp.

Are bamboo shrimp hardy?

Yes, once settled in a mature tank with good flow and enough food. Most losses come from starvation or rushed acclimation, not weakness.

Are bamboo shrimp hard to keep?

Not hard, but they need three things many tanks lack: strong flow, a mature tank and regular powdered food.

What do bamboo shrimp eat?

Fine floating foods like spirulina powder, powdered fry food, crushed flakes, baby brine shrimp and specialty filter-feeder foods.

What size tank do bamboo shrimp need?

At least 20 gallons, ideally a mature, well-planted tank with strong flow.

How long do bamboo shrimp live?

Usually 1 to 2 years, and sometimes longer with good care.

Can bamboo shrimp live with fish?

Yes, with small peaceful fish. Avoid cichlids, goldfish, large gouramis, puffers and invert-eating loaches.

What temperature do bamboo shrimp need?

72 to 82 F (22 to 28 C), the same as most tropical community tanks.