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ShrimpmediumFreshwater

Malaya Shrimp

Caridina malayensis

📍 Malaysia (wild-caught origin, though captive-bred populations now exist)

Ask Finn

Malaya Shrimp are small, hardy freshwater shrimp with a translucent to brownish body coloration and subtle striping patterns. They are excellent algae grazers and detritivores, making them valuable for planted tank maintenance. These shrimp are relatively undemanding compared to other Caridina species, though they still prefer slightly acidic, soft water conditions.

Size1.2"
Min Tank5g
School10+
peaceful
Zonebottom

Care Guide

Diet

Malaya Shrimp are primarily detritivores that graze on biofilm, algae, and decaying plant matter. Supplement with quality shrimp pellets (Shirakura, Mosura) 2-3 times weekly and occasional blanched vegetables such as zucchini, spinach, or cucumber. Ensure adequate leaf litter and driftwood for natural grazing surfaces.

Behavior

Malaya Shrimp are active grazers that spend most of their time foraging on substrate and hardscape. They are social and do well in groups, exhibiting natural colony dynamics. Molting occurs regularly; provide plenty of hiding spots and mineral-rich water to support successful molts.

Breeding

Malaya Shrimp breed readily in established tanks with stable, slightly acidic soft water (pH 6.0-7.0, GH 4-8). Females produce small broods of fully-formed shrimplets (no larval stage), which are released directly into the water column. Breeding success improves with good water quality and abundant food sources.

Common Diseases

Molting Failure / Incomplete Molt

Symptoms

Shrimp unable to fully shed exoskeleton; partial molt with body stuck in old shell; lethargy and reduced feeding

Treatment

Increase mineral content via GH booster or mineral supplements; ensure adequate calcium and magnesium; maintain stable water parameters; provide soft plants and moss for assistance during molt

Bacterial Infection / Muscular Necrosis

Symptoms

White or opaque patches on body or appendages; discoloration; lethargy; loss of appetite; death within days if untreated

Treatment

Perform 30% water change; increase aeration; add Indian almond leaves or tannins to acidify and sterilize water; maintain pristine water quality; isolate affected individuals if possible; avoid copper-based treatments

Vorticella / Protozoan Infection

Symptoms

Cloudy or fuzzy white coating on body and antennae; reduced movement; difficulty molting; shrimp appear to be covered in dust

Treatment

Increase water changes (25-30% daily); add salt-free mineral supplements; improve water flow and oxygenation; use Indian almond leaves or catappa leaves for tannins; maintain optimal pH and GH; avoid copper treatments

Copper Toxicity

Symptoms

Sudden death or lethargy; discoloration; loss of appetite; erratic swimming behavior

Treatment

Perform immediate large water change (50%+); use copper-free medications and fertilizers; check all tank additives for copper content; use RO water if tap water is copper-contaminated; maintain water quality to reduce stress

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Quick Facts

diet
detritivore/omnivore - biofilm, algae, leaf litter, blanched vegetables
lifespan
2-3 years
max size
3 cm (1.2 in)
tank size
5 gallons minimum for colony
temperament
peaceful

Water it likes

ph
6.0-7.0
ammonia
0 ppm
nitrate
<20 ppm
hardness
4-8 dGH
temperature
72–79°F (22–26°C)

Stats

Community tips0
Kept by0 hobbyists