Red Claw Crab tank mates
Perisesarma bidens
6 rated pairings from the Red Claw Crab care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Red Claw Crab needs at least 20 gallons on its own; every companion adds to that.
Excellent matches
3 · Same water, complementary zones, no conflict.Anubias Snow White
Anubias barteri var. nana
Hardy plant that crabs cannot easily damage; provides cover and foraging surfaces
Java Moss
Taxiphyllum barbieri
Durable plant that crabs will not consume; creates biofilm for grazing
Marimo Moss Ball
Aegagropila linnaei
Inert décor that provides grazing surfaces and shelter without risk of predation
Good matches
1 · Compatible with normal care — watch space and numbers.
Use caution
2 · Works in the right setup; read the note before combining.
Nerite Snail
Neritina natalensis
5 gal min · 1" adult · Peaceful
May be predated upon by crabs; provide plenty of hiding spots and hard shells for protection
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Small fish at risk of predation; only suitable in larger tanks with ample hiding spaces
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.