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ShrimpmediumFreshwater

Wood Shrimp

Atyopsis spinipes

📍 Southeast Asia (Thailand, Malaysia, Indonesia)

Ask Finn

Wood Shrimp (Atyopsis spinipes) are large, peaceful freshwater shrimp native to Southeast Asia, known for their distinctive fan-like feeding appendages and filter-feeding behavior. They are excellent algae and biofilm consumers that add visual interest to planted tanks with their active foraging. These shrimp require mature, well-established aquariums with stable water parameters and plenty of hiding spots.

Size2"
Min Tank20g
peaceful
Zonebottom

Care Guide

Diet

Wood Shrimp are primarily filter-feeders that consume biofilm, algae, and suspended organic matter. Supplement with high-quality shrimp pellets, algae wafers, and blanched vegetables (spinach, zucchini) 2-3 times weekly. They require a mature tank with established biofilm to thrive; new tanks often lack sufficient natural food sources.

Behavior

Wood Shrimp are active foragers that spend most of their time on rocks and driftwood using their fan-like appendages to filter-feed from the water column. They are generally solitary or found in loose aggregations and are most active during low-light periods. They molt regularly and require adequate calcium for shell hardening; provide cuttlebone or mineral supplements.

Breeding

Wood Shrimp are difficult to breed in freshwater aquariums as their larvae require brackish water to develop successfully. Females produce eggs but they rarely hatch in purely freshwater conditions. Breeding is not practical for most hobbyists and is rarely achieved outside specialized breeding facilities.

Common Diseases

Copper Toxicity

Symptoms

Lethargy, loss of appetite, discoloration, sudden death; shrimp are extremely sensitive to copper

Treatment

Use only copper-free medications and fertilizers; perform large water changes; use activated carbon to remove copper; avoid treating tank with copper-based remedies

Molting Stress / Failed Molt

Symptoms

Shrimp stuck in old exoskeleton, inability to move, death shortly after molt attempt

Treatment

Ensure adequate calcium and minerals (cuttlebone, mineral supplements); maintain stable water parameters; provide soft plants and hiding spots to reduce stress during vulnerable molting periods

Bacterial Infection / Shell Erosion

Symptoms

Visible spots or lesions on body, shell pitting, discoloration, lethargy

Treatment

Perform frequent water changes to improve water quality; maintain pH 6.5-7.5 and adequate hardness; remove affected individuals to quarantine; ensure biofilm-rich environment for natural immune support

Starvation / Biofilm Deficiency

Symptoms

Weight loss, lethargy, reduced activity, death in new tanks lacking established biofilm

Treatment

Establish tank for 4-6 weeks before adding shrimp; supplement with algae wafers and quality shrimp food; ensure mature substrate with abundant microorganisms; avoid over-cleaning substrate

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Quick Facts

diet
Detritivore/filter-feeder - primarily biofilm, algae, and organic detritus
lifespan
4-6 years
max size
5 cm (2 in)
tank size
20 gallons minimum
temperament
peaceful

Water it likes

ph
6.5-7.5
ammonia
0 ppm
nitrate
<20 ppm
hardness
4-8 dGH
temperature
72–79°F (22–26°C)

Stats

Community tips0
Kept by0 hobbyists