


Species Profile
Glowlight Tetra
Hemigrammus erythrozonus
Tetraspeaceful
Adult size
1.5″
Minimum tank
10 gal
Temperature
74–82°F
pH
5.5–7.5
Schooling
Group of 6+
Water level
mid
Diet
Flake, micro pellets
Notes
Glowing orange-red horizontal stripe along a translucent body. Peaceful schooler from Guyana's blackwater rivers. Looks dramatic in a planted tank with subdued lighting and dark substrate, group of 8+ recommended.
Compatible Tankmates
Best tank mates for Glowlight Tetra
Every species below passes the compatibility engine when paired with Glowlight Tetrain a suitably sized tank. Verdicts come from the same rules the builder uses — click a card to see that species' own care profile and its tank mates in turn.

Neon Tetra
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.

Cardinal Tetra
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.

Rummynose Tetra
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.

Harlequin Rasbora
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.

Celestial Pearl Danio
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.

Fancy Guppy
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.

Endler's Livebearer
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.

Platy
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.

Male Betta
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.

Dwarf Gourami
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.

Honey Gourami
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.

German Blue Ram
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Photo: Nevit Dilmen / Wikimedia Commons · Source · CC-BY-SA-3.0