Blue Moon Crayfish tank mates
Cherax pulcher
6 rated pairings from the Blue Moon Crayfish care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Blue Moon Crayfish needs at least 30 gallons on its own; every companion adds to that.
Good matches
2 · Compatible with normal care — watch space and numbers.Use caution
4 · Works in the right setup; read the note before combining.
Pellia Moss
Monosolenium tenerum
Will be nibbled and uprooted; use as sacrificial plant or secure firmly
L333 King Tiger Pleco
Hypancistrus sp. L333
40 gal min · 5" adult · Semi-aggressive
Large pleco may compete for space and food; nocturnal overlap increases conflict risk
Red Oscar
Astronotus ocellatus
75 gal min · 14" adult · Semi-aggressive
Large, aggressive fish; may attack crayfish or be attacked; requires very large tank
Bristlenose Pleco
Ancistrus sp.
20 gal min · 5" adult · Peaceful
May compete for food and shelter; nocturnal activity overlap increases aggression
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.