Spotted Silver Dollar tank mates
Metynnis maculatus
6 rated pairings from the Spotted Silver Dollar care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Spotted Silver Dollar needs at least 75 gallons on its own; every companion adds to that.
Excellent matches
2 · Same water, complementary zones, no conflict.Silver Dollar
Metynnis argenteus
55 gal min · 6" adult · Peaceful
Congeneric species that shares similar size, temperament, and water requirements; schools well together
Red Hook Silver Dollar
Myloplus rubripinnis
75 gal min · 3.5" adult · Peaceful
Similar body shape and peaceful temperament; thrives in the same water conditions and large schools
Good matches
4 · Compatible with normal care — watch space and numbers.Flag Tail Prochilodus
Semaprochilodus taeniurus
125 gal min · 12" adult · Semi-aggressive
Large, peaceful South American species that coexists well in spacious tanks with similar water parameters
Bala Shark
Balantiocheilos melanopterus
125 gal min · 14" adult · Peaceful
Peaceful, similarly sized schooling fish from comparable water conditions; both need large tanks
Severum
Heros severus
55 gal min · 8" adult · Semi-aggressive
Peaceful cichlid of similar size that shares South American origins and compatible water parameters

Bristlenose Pleco
Ancistrus sp.
20 gal min · 5" adult · Peaceful
Bottom-dwelling algae eater that occupies a different zone and poses no threat to silver dollars
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.