Adonis Pleco tank mates
Acanthicus adonis
4 rated pairings from the Adonis Pleco care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Adonis Pleco needs at least 150 gallons on its own; every companion adds to that.
Excellent matches
2 · Same water, complementary zones, no conflict.
Emerald Dwarf Rasbora
Danio erythromicron
10 gal min · 1" adult · Peaceful
Small, peaceful schooling fish that occupy mid-water zones and won't disturb the pleco

Rummy Nose Tetra
Hemigrammus rhodostomus
15 gal min · 2" adult · Peaceful
Peaceful, non-aggressive schooling fish that thrive in similar warm water conditions
Good matches
2 · Compatible with normal care — watch space and numbers.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Small, peaceful algae-eaters that occupy different water zones and won't compete for bottom space

Bristlenose Pleco
Ancistrus sp.
20 gal min · 5" adult · Peaceful
Compatible pleco species with similar water requirements; ensure sufficient driftwood and cave space for both
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.