Bamboo Shrimp care guide
Bamboo Shrimp (Atyopsis moluccensis) — minimum tank 80 L, temperature 23-28 °C, pH 6.8-7.8.
Compiled by Aquairi from published sources · Published · Updated
Overview
The Bamboo Shrimp (Atyopsis moluccensis) is a large freshwater filter-feeder native to fast-flowing streams of Southeast Asia and Indonesia. Modified front limbs end in feathery fans that the shrimp opens into the current to strain microscopic food particles.
Taxonomy
- Family: Atyidae
- Genus: Atyopsis
- Scientific name: Atyopsis moluccensis
- Common synonyms: Wood Shrimp, Singapore Flower Shrimp, Fan Shrimp
Habitat
Wild populations inhabit clear, well-oxygenated streams and rivers across the Indonesian archipelago, Malaysia, the Philippines and the Solomon Islands. Adults perch on rocks or wood in moderate to strong current and constantly fan-feed.
Tank requirements
- Minimum tank volume: 80 L (21.1 US gal)
- Adult size: 8-10 cm
- Temperature: 23-28 °C (73-82 °F)
- pH: 6.8-7.8
- GH: 6-14 °dGH
- KH: 3-8 °dKH
- Lifespan: 2-3 years
Diet
An obligate filter-feeder. In aquaria a Bamboo Shrimp must have enough suspended food — finely powdered shrimp food, baby brine shrimp, phytoplankton or rotifers — supplied by drifting in the current. Sterile, ultra-clean tanks will starve them; visible fan-feeding behaviour confirms adequate food density.
Compatibility
A peaceful giant of the shrimp world. Suitable tankmates are calm community species such as tetras, rasboras, Corydoras and Otocinclus. Avoid cichlids, crayfish and large boisterous fish that may injure the moulting shrimp or knock it from its perch.
Breeding
Adults breed readily, but larvae require a brackish-to-marine stage to develop, mirroring the natural amphidromous life cycle. Captive breeding is therefore considered expert-level, and almost all aquarium stock is wild-caught.
Bamboo Shrimp Breeding Guide (Atyopsis moluccensis)
Overview
Atyopsis moluccensis, the bamboo or Singapore flower shrimp, is a large Atyidae filter feeder of the genus Atyopsis, found on volcanic islands from Sri Lanka to the Samoan Islands and north to Okinawa, as well as the Asian mainland from the Malay Peninsula to India. It feeds by spreading feather-like fans on its front limbs to strain particles from the water column, foraging the substrate only when food is scarce. Its diet consists of plant and algae particles. Crucially for breeders, it has an amphidromous life cycle, and there are essentially no confirmed reports of successful home breeding.
Conditioning
Adults live in freshwater and prefer moderate to strong flow that delivers suspended food to their fans. Well-conditioned, well-fed adults that fan in the current and molt normally are the starting point, since molting leaves them vulnerable and ample hiding places should be provided. A mature tank with steady flow and fine suspended food (powdered shrimp food, crushed flake, spirulina) keeps adults in spawning condition, but inducing reproduction is unreliable at home.
Breeding Setup
Bamboo shrimp are low-order shrimp: they hatch as larvae rather than miniature adults, and the larvae require brackish or salt water to develop. A breeding attempt therefore needs a separate brackish rearing vessel, because the adults will not tolerate salt in their aquarium. This makes transferring and acclimating newly hatched larvae into brackish conditions difficult and risky, and is the main reason captive breeding rarely succeeds.
Spawning & Berried Females
Females carry eggs beneath the abdomen until they hatch into free-swimming larvae. Because development is amphidromous, in the wild larvae drift downstream to brackish estuaries, grow there, and migrate back to freshwater as juveniles. In the aquarium the larvae must be moved promptly to brackish water of roughly 33-34 grams of salt per litre after hatching, with salinity then lowered gradually as they develop toward the freshwater adult form.
Shrimplet/Larval Care
There is no freshwater shrimplet stage: the planktonic larvae will not survive without the brackish phase. They are tiny, drift in the current, and need fine planktonic food during the saltwater period. Survival through the salinity transition is poor, and to date the process has rarely been completed successfully outside specialist conditions.
Common Challenges
Almost all bamboo shrimp in the trade are wild-caught because home breeding is so difficult. The conflict between salt-requiring larvae and salt-intolerant adults forces two separate systems and a risky transfer, and the larvae are fragile. For most keepers, breeding is impractical; the realistic goal is long-term care of healthy filter-feeding adults rather than reproduction.