Sailfin Molly tank mates
Poecilia latipinna
5 rated pairings from the Sailfin Molly care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Sailfin Molly needs at least 30 gallons on its own; every companion adds to that.
Excellent matches
2 · Same water, complementary zones, no conflict.
Platy
Xiphophorus maculatus
10 gal min · 2.5" adult · Peaceful
Closely related livebearers with identical water parameter needs and peaceful behavior
Gold Mystery Snail
Pomacea bridgesii
5 gal min · 2" adult · Peaceful
Algae-eating snail that complements the molly's diet preferences and won't compete for food
Good matches
3 · Compatible with normal care — watch space and numbers.
Guppy
Poecilia reticulata
10 gal min · 2" adult · Peaceful
Similar peaceful temperament and water requirements; males may compete for display space but generally compatible
Rummy Nose Tetra
Hemigrammus rhodostomus
15 gal min · 2" adult · Peaceful
Peaceful schooling fish that occupy different water zones and prefer similar water conditions
Bristlenose Pleco
Ancistrus sp.
20 gal min · 5" adult · Peaceful
Peaceful algae eater that occupies bottom zone; helps maintain water quality in established tanks
Also recommended alongside Sailfin Molly
Species whose own guides list Sailfin Molly as a tank mate.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.