Thai Micro Crab tank mates
Limnopilos naiyanetri
6 rated pairings from the Thai Micro Crab care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why.
Excellent matches
4 · Same water, complementary zones, no conflict.
Red Cherry Shrimp
Neocaridina davidi
5 gal min · 1.2" adult · Peaceful
Similar size, peaceful, same water parameters, both detritivores that won't compete aggressively

Amano Shrimp
Caridina multidentata
10 gal min · 2" adult · Peaceful
Larger but non-aggressive, excellent biofilm cleaners, compatible temperature and pH ranges

Java Moss
Taxiphyllum barbieri
Essential habitat plant; provides hiding spaces, biofilm growth, and natural food sources

Anubias Nana
Anubias barteri var. nana
Low-light plant that creates shelter; slow-growing and won't overshadow the micro crab's habitat
Good matches
2 · Compatible with normal care — watch space and numbers.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Small, peaceful algae eaters; compatible water parameters but ensure adequate biofilm for both species

Ember Tetra
Hyphessobrycon amandae
10 gal min · 0.8" adult · Peaceful
Tiny, peaceful fish that won't predate on crabs; similar water temperature preferences
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.