Red Swamp Crayfish tank mates
Procambarus clarkii
6 rated pairings from the Red Swamp Crayfish care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Red Swamp Crayfish needs at least 20 gallons on its own; every companion adds to that.
Good matches
1 · Compatible with normal care — watch space and numbers.Use caution
5 · Works in the right setup; read the note before combining.L333 King Tiger Pleco
Hypancistrus sp. L333
40 gal min · 5" adult · Semi-aggressive
Large, armored pleco may coexist but crayfish may harass or injure during molting
L260 Queen Arabesque Pleco
Hemiancistrus sp. L260
55 gal min · 5.5" adult · Peaceful
Nocturnal pleco; territorial conflicts likely; size provides some protection
Pellia Moss
Monosolenium tenerum
Will be uprooted and consumed; provide in excess or secure firmly
Red Hump Eartheater
Geophagus steindachneri
55 gal min · 7" adult · Peaceful
Large cichlid; may fight crayfish but both are aggressive; requires large tank
Tiger Oscar
Astronotus ocellatus
75 gal min · 14" adult · Semi-aggressive
Large predatory fish; may prey on juvenile crayfish or vice versa; aggression likely
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.