Glowlight Tetra tank mates
Hemigrammus erythrozonus
5 rated pairings from the Glowlight Tetra care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Glowlight Tetra needs at least 10 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 algae eater with identical water parameter requirements; shares mid-to-bottom zones without conflict

Rummy Nose Tetra
Hemigrammus rhodostomus
15 gal min · 2" adult · Peaceful
Peaceful schooling tetra with nearly identical care requirements and compatible temperament

Anubias Barteri
Anubias barteri
Hardy plant that provides shelter and shade; glowlights appreciate the dense planting for security
Good matches
2 · Compatible with normal care — watch space and numbers.Dwarf Gourami
Trichogaster lalius
15 gal min · 3.5" adult · Semi-aggressive
Peaceful mid-water dweller; ensure adequate space and dense planting to reduce territorial behavior

Red Cherry Shrimp
Neocaridina davidi
5 gal min · 1.2" adult · Peaceful
Peaceful invertebrate that shares planted habitat; may occasionally be nipped but generally coexist well
Also recommended alongside Glowlight Tetra
Species whose own guides list Glowlight Tetra as a tank mate.

GloFish Danio
Danio rerio
10 gal min · 2" adult · Peaceful
Featherfin Tetra
Hemigrammus unilineatus
20 gal min · 2" adult · Peaceful
Green Tiger Barb
Puntigrus tetrazona
20 gal min · 3" adult · Semi-aggressive
Striped Panchax
Aplocheilus lineatus
20 gal min · 4" adult · Semi-aggressive
Taeniatus Krib
Pelvicachromis taeniatus
20 gal min · 3.5" adult · Semi-aggressive
Wrestling Halfbeak
Dermogenys pusilla
15 gal min · 2.8" adult · Semi-aggressive
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.