Pom Pom Crab tank mates
Ptychognathus barbatus
6 rated pairings from the Pom Pom Crab care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Pom Pom Crab needs at least 10 gallons on its own; every companion adds to that.
Excellent matches
5 · Same water, complementary zones, no conflict.
Amano Shrimp
Caridina multidentata
10 gal min · 2" adult · Peaceful
Similar peaceful filter-feeding behavior and biofilm consumption; no predatory interaction
Ghost Shrimp
Palaemonetes paludosus
5 gal min · 1.5" adult · Peaceful
Peaceful scavengers with similar ecological niche; minimal territorial conflict
Neon Tetra
Paracheirodon innesi
10 gal min · 1.5" adult · Peaceful
Small, peaceful fish that do not prey on or compete with filter-feeding crabs
Ember Tetra
Hyphessobrycon amandae
10 gal min · 0.8" adult · Peaceful
Tiny, non-aggressive fish that coexist peacefully with bottom-dwelling crabs
Java Moss
Taxiphyllum barbieri
Provides shelter, biofilm growth surface, and grazing area for crabs
Good matches
1 · Compatible with normal care — watch space and numbers.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.