Peacock Eel tank mates
Macrognathus siamensis
4 rated pairings from the Peacock Eel care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Peacock Eel needs at least 35 gallons on its own; every companion adds to that.
Good matches
3 · Compatible with normal care — watch space and numbers.
Ember Tetra
Hyphessobrycon amandae
10 gal min · 0.8" adult · Peaceful
Small, peaceful mid-water swimmers that won't compete for bottom space or trigger predatory behavior
Kuhli Loach
Pangio kuhlii
20 gal min · 4" adult · Peaceful
Similar nocturnal, burrowing behavior and peaceful nature; compatible water parameters
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Small, peaceful algae-eaters that occupy different ecological niches and won't compete for food
Use caution
1 · Works in the right setup; read the note before combining.
Also recommended alongside Peacock Eel
Species whose own guides list Peacock Eel as a tank mate.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.