Amazon Molly tank mates
Poecilia formosa
6 rated pairings from the Amazon Molly care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Amazon Molly 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 guppies ideal companions
Platy
Xiphophorus maculatus
10 gal min · 2.5" adult · Peaceful
Fellow livebearers with matching care needs and peaceful behavior; compatible water chemistry
Ramshorn Snail
Planorbarius corneus
5 gal min · 0.75" adult · Peaceful
Peaceful invertebrate that helps control algae and detritus without competing for food or space
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 occupy different water zones and have similar temperature preferences
Corydoras Duplicareus
Corydoras duplicareus
15 gal min · 2.2" adult · Peaceful
Bottom-dwelling catfish that won't compete for space; peaceful scavenger that helps maintain tank cleanliness
Use caution
1 · Works in the right setup; read the note before combining.Also recommended alongside Amazon Molly
Species whose own guides list Amazon 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.