Parkinsoni Rainbowfish tank mates
Melanotaenia parkinsoni
6 rated pairings from the Parkinsoni Rainbowfish care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Parkinsoni Rainbowfish needs at least 30 gallons on its own; every companion adds to that.
Excellent matches
2 · Same water, complementary zones, no conflict.Celebes Rainbowfish
Marosatherina ladigesi
20 gal min · 3" adult · Peaceful
Similar size, temperament, and water requirements; compatible schooling behavior
Boesemani Rainbowfish
Melanotaenia boesemani
30 gal min · 4.5" adult · Peaceful
Peaceful rainbowfish species with overlapping water parameter needs
Good matches
4 · Compatible with normal care — watch space and numbers.Sterbai Corydoras
Corydoras sterbai
20 gal min · 2.5" adult · Peaceful
Bottom-dwelling peaceful catfish that occupy different water zones and aid tank cleanliness
Rummy Nose Tetra
Hemigrammus rhodostomus
15 gal min · 2" adult · Peaceful
Peaceful schooling fish with similar temperature and pH preferences
Harlequin Rasbora
Trigonostigma heteromorpha
10 gal min · 2" adult · Peaceful
Small peaceful schoolers that thrive in comparable water conditions without competing for space
Bristlenose Pleco
Ancistrus sp.
20 gal min · 5" adult · Peaceful
Nocturnal algae eater that doesn't compete with rainbowfish and helps maintain tank cleanliness
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.