Pearl Danio tank mates
Danio albolineatus
6 rated pairings from the Pearl Danio care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Pearl Danio needs at least 15 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
Similar size, peaceful temperament, and identical water parameter requirements make them ideal companions.
Glowlight Danio
Danio choprai
10 gal min · 1.25" adult · Peaceful
Closely related danio species with matching behavior and water needs; school together harmoniously.
Good matches
4 · Compatible with normal care — watch space and numbers.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Peaceful algae eater that occupies different water zones and has compatible temperature requirements.
Neon Tetra
Paracheirodon innesi
10 gal min · 1.5" adult · Peaceful
Small, peaceful community fish with overlapping temperature ranges; avoid very small fry as danios may predate them.
Corydoras Duplicareus
Corydoras duplicareus
15 gal min · 2.2" adult · Peaceful
Bottom-dwelling catfish that won't compete for space; prefers slightly cooler water but tolerates pearl danio conditions.
Gold Mystery Snail
Pomacea bridgesii
5 gal min · 2" adult · Peaceful
Peaceful invertebrate that occupies different ecological niche; danios generally ignore snails.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.