Pineapple Swordtail tank mates
Xiphophorus hellerii
5 rated pairings from the Pineapple Swordtail care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Pineapple Swordtail needs at least 20 gallons on its own; every companion adds to that.
Excellent matches
2 · 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 community companions
Platy
Xiphophorus maculatus
10 gal min · 2.5" adult · Peaceful
Fellow livebearers with matching water needs and peaceful behavior; can interbreed but compatible in mixed-sex groups
Good matches
3 · 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 prefer slightly softer water but tolerate swordtail conditions
Gold Mystery Snail
Pomacea bridgesii
5 gal min · 2" adult · Peaceful
Algae-eating snail that thrives in hard water; swordtails generally ignore snails and benefit from their cleanup
Bristlenose Pleco
Ancistrus sp.
20 gal min · 5" adult · Peaceful
Peaceful algae eater that prefers similar water conditions and provides biofilm control without competing for food
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.