Species · Mikrogeophagus ramirezi

German blue ram: tank size, water and tank mates

Needs warm, very clean, soft water; short-lived and sensitive.

Adult size5 cm (2.0 in)
Minimum tank20 US gal
Temperature27–30 °C (81–86 °F)
pH5–6
Temperamentpeaceful
Keep in groups of2+
Swimsbottom
Shrimp & snailsCaution

Check a tank with German blue ram

Good tank mates for German blue ram

These species share its temperature range and temperament, with no fin-nipping or predation risk under our rules. Still check your tank size and bioload in the checker.

Agassiz's dwarf cichlid · Betta (male) · Black phantom tetra · Bloodfin tetra · Buenos Aires tetra · Chili rasbora · Colombian tetra · Dwarf pencilfish · Head-and-tail-light tetra · Lambchop rasbora · Lemon tetra · Marbled hatchetfish · Moonlight gourami · Pearl gourami · Silvertip tetra · Spotted blue-eye · Threadfin rainbowfish · X-ray tetra

Avoid with German blue ram

African dwarf frog (temperature) · Banded archerfish (predation) · Black ghost knifefish (predation) · Black ruby barb (temperature) · Black skirt tetra (temperature) · Bleeding heart tetra (temperature) · Bolivian ram (temperature) · Bristlenose pleco (temperature) · Bronze corydoras (temperature) · Celestial pearl danio (temperature) · Checkerboard barb (temperature) · Chinese algae eater (temperature) · Clown killifish (temperature) · Common / comet goldfish (temperature) · Congo tetra (temperature) · Convict cichlid (aggression) · CPO dwarf crayfish (temperature) · Crystal red shrimp (temperature)

Sources

Checked 2026-11-09 · confidence: high. These are cautious community guidelines, not guarantees. Not veterinary advice. Report an error.