Red Platy tank mates
Xiphophorus maculatus
5 rated pairings from the Red Platy care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Red Platy needs at least 10 gallons on its own; every companion adds to that.
Excellent matches
3 · Same water, complementary zones, no conflict.
Guppy
Poecilia reticulata
10 gal min · 2" adult · Peaceful
Similar size, peaceful temperament, and identical water parameter requirements make them ideal companions

Gold Mystery Snail
Pomacea bridgesii
5 gal min · 2" adult · Peaceful
Peaceful invertebrate that helps control algae and occupies different ecological niche without competing for food

Harlequin Rasbora
Trigonostigma heteromorpha
10 gal min · 2" adult · Peaceful
Schooling fish with similar size and peaceful nature; prefer slightly softer water but adapt well to platy conditions
Good matches
2 · Compatible with normal care — watch space and numbers.
Neon Tetra
Paracheirodon innesi
10 gal min · 1.5" adult · Peaceful
Small, peaceful schooling fish that thrive in similar water conditions; keep in groups of 6+ for best results
Dwarf Gourami
Trichogaster lalius
15 gal min · 3.5" adult · Semi-aggressive
Peaceful labyrinth fish with compatible water requirements; monitor for territorial behavior in smaller tanks
Also recommended alongside Red Platy
Species whose own guides list Red Platy as a tank mate.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.