Splash Tetra tank mates
Copella arnoldi
5 rated pairings from the Splash Tetra care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Splash Tetra needs at least 20 gallons on its own; every companion adds to that.
Excellent matches
3 · Same water, complementary zones, no conflict.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Peaceful bottom-dweller that won't compete for surface food; shares similar water parameters
Neon Tetra
Paracheirodon innesi
10 gal min · 1.5" adult · Peaceful
Compatible schooling fish with identical water requirements and peaceful temperament
Rummy Nose Tetra
Hemigrammus rhodostomus
15 gal min · 2" adult · Peaceful
Similar size, peaceful behavior, and preference for soft acidic water
Good matches
1 · Compatible with normal care — watch space and numbers.Use caution
1 · Works in the right setup; read the note before combining.Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.