Brazos Dwarf Crayfish tank mates
Cambarellus texanus
6 rated pairings from the Brazos Dwarf Crayfish care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Brazos Dwarf Crayfish needs at least 10 gallons on its own; every companion adds to that.
Excellent matches
4 · Same water, complementary zones, no conflict.
Red Cherry Shrimp
Neocaridina davidi
5 gal min · 1.2" adult · Peaceful
Similar size and peaceful temperament; both are bottom dwellers with compatible water parameters

Emerald Dwarf Rasbora
Danio erythromicron
10 gal min · 1" adult · Peaceful
Small, peaceful fish that occupy mid-water column and won't prey on or compete with crayfish

Java Moss
Taxiphyllum barbieri
Provides essential hiding cover and grazing material for the crayfish

Anubias Nana
Anubias barteri var. nana
Hardy plant that provides shelter and won't be uprooted by the crayfish's burrowing behavior
Good matches
2 · Compatible with normal care — watch space and numbers.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Peaceful algae eaters that share similar water preferences and won't harass the crayfish

Ramshorn Snail
Planorbarius corneus
5 gal min · 0.75" adult · Peaceful
Compatible invertebrate that occupies similar ecological niche without conflict
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.