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ShrimphardFreshwater

African Fan Shrimp

Desmocaris trispinosa

📍 West Africa (Cameroon, Nigeria)

Ask Finn

African Fan Shrimp are striking freshwater shrimp characterized by their large, fan-like appendages (maxillipeds) that they use to filter-feed from the water column. They display a mottled brown to tan coloration with darker banding patterns, making them visually distinctive in planted tanks. These shrimp are primarily filter-feeders, spending much of their time stationary in moderate water flow.

Size1.5"
Min Tank20g
School3+
peaceful
Zonebottom

Care Guide

Diet

African Fan Shrimp are obligate filter-feeders that require moderate water flow to capture suspended food particles. Supplement their diet with powdered shrimp foods, spirulina powder, and occasional blanched vegetables (zucchini, spinach). Ensure adequate biofilm development through established substrate and wood; avoid over-cleaning the tank.

Behavior

These shrimp are sedentary filter-feeders that position themselves in areas of moderate current, using their large fan-like appendages to strain food from the water. They are nocturnal grazers and spend daylight hours hidden among plants or décor. They are generally solitary or found in small loose groups and do not exhibit aggressive colony dynamics.

Breeding

African Fan Shrimp are difficult to breed in captivity and require stable, mature tanks with excellent water quality. Females produce small batches of larvae that are planktonic and extremely difficult to rear without specialized culturing techniques. Breeding success is rare in home aquaria; most specimens are wild-caught or farm-raised.

Common Diseases

Molting Failure / Incomplete Molt

Symptoms

Shrimp unable to shed exoskeleton completely; stuck in molt; lethargy; death if not resolved

Treatment

Increase mineral content via GH booster or calcium supplementation (Salty Shrimp, Bee Shrimp Mineral); ensure pH stability; perform gentle 25% water changes; provide soft plants for grip during molt

Copper Toxicity

Symptoms

Lethargy, loss of appetite, discoloration, sudden death

Treatment

Perform immediate large water changes (50%); use copper-free medications only; check all fertilizers and supplements for copper content; use activated carbon in filter

Bacterial Infection / Muscular Necrosis

Symptoms

White spots or patches on body, discolored appendages, loss of limbs, lethargy

Treatment

Increase water changes (25% every 2-3 days); add Indian almond leaves or alder cones for tannins; maintain pristine water quality; isolate severely affected individuals if possible

Vorticella / Protozoan Infection

Symptoms

Cloudy white coating on body, reduced feeding, lethargy, difficulty molting

Treatment

Perform daily 25% water changes; add tannins via Indian almond leaves; increase aeration; maintain stable temperature; avoid sudden parameter swings

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Quick Facts

diet
detritivore/omnivore - primarily filter-feeder on biofilm, microorganisms, and suspended particles
lifespan
2-3 years
max size
4 cm (1.6 in)
tank size
20 gallons minimum
temperament
peaceful

Water it likes

ph
6.5-7.5
ammonia
0 ppm
nitrate
<20 ppm
hardness
6-10 dGH
temperature
72–79°F (22–26°C)

Stats

Community tips0
Kept by0 hobbyists