Species › Tetras

Glowlight tetra tank mates and minimum tank size

Hemigrammus erythrozonus

Glowlight tetras grow to 4 cm (1.6 in). They live in groups: keep at least 6. They need 24–28 °C (75–82 °F) and pH 6.0–7.5.

Minimum tank

68 L (18 US gal), at least 60 cm (24 in) long

Adult size

4 cm (1.6 in)

Temperature

24–28 °C (75–82 °F)

pH

pH 6.0–7.5

Group

6 or more

Glowlight tetra minimum tank size

Glowlight tetras need at least 68 L (18 US gal), in a tank at least 60 cm (24 in) long.

That is the largest minimum among the sources below. The planner also checks the tank length against the adult size of 4 cm (1.6 in): a tank shorter than 4 times that is cramped (16 cm (6.3 in)).

Glowlight tetra tank mates

Each of the other 52 species in this reference, judged against glowlight tetras by the same rules as the compatibility checker. A guide, not a guarantee.

Compatible (35)

• Black neon tetra
• Black skirt tetra
• Boeseman's rainbowfish
• Bristlenose pleco
• Bronze corydoras
• Celestial pearl danio
• Cherry barb
• Chili rasbora
• Clown loach
• Common pleco
• Congo tetra
• Discus
• Dwarf gourami
• Ember tetra
• Endler's livebearer
• Glass catfish
• Guppy
• Harlequin rasbora
• Honey gourami
• Kribensis
• Kuhli loach
• Lemon tetra
• Neon tetra
• Nerite snail
• Otocinclus
• Panda corydoras
• Pearl gourami
• Platy
• Pygmy corydoras
• Red tail shark
• Serpae tetra
• Siamese algae eater
• Swordtail
• Tiger barb
• Yoyo loach

With care (10)

• AngelfishAngelfish grow to 15 cm and eat animals they can swallow; glowlight tetras grow to 4 cm.
• BettaBettas are usually best kept alone. Some accept calm tank mates such as glowlight tetras, many do not.
• Cardinal tetraThe only pH that suits both is pH 6.0, set by glowlight tetras and cardinal tetras. That leaves no margin.
• Cherry shrimpGlowlight tetras (4 cm) usually leave adult cherry shrimp (4 cm) alone but eat the young.
• Cockatoo dwarf cichlidThe only pH that suits both is pH 6.0, set by glowlight tetras and cockatoo dwarf cichlids. That leaves no margin.
• German blue ramThe only pH that suits both is pH 6.0, set by glowlight tetras and German blue rams. That leaves no margin.
• MollyThe only pH that suits both is pH 7.5, set by mollies and glowlight tetras. That leaves no margin.
• Mystery snailThe only pH that suits both is pH 7.2–7.5, set by mystery snails and glowlight tetras. That leaves no margin.
• Rummy-nose tetraThe only pH that suits both is pH 6.0, set by glowlight tetras and rummy-nose tetras. That leaves no margin.
• Zebra danioThe only temperature that suits both is 24 °C (75 °F), set by glowlight tetras and zebra danios. That leaves no margin.

Not compatible (7)

• Convict cichlidConvict cichlids are aggressive and best kept in a tank of their own; they attack fish several times their size, so glowlight tetras would be harassed. Convict cichlids grow to 15 cm and eat animals they can swallow; glowlight tetras grow to 4 cm.
• GoldfishGlowlight tetras need 24–28 °C (75–82 °F); goldfish need 15.6–21.1 °C (60–70 °F). No temperature suits both.
• OscarOscars grow to 46 cm and eat animals they can swallow; glowlight tetras grow to 4 cm.
• Paradise fishGlowlight tetras need 24–28 °C (75–82 °F); paradise fish need 16–22 °C (61–72 °F). No temperature suits both.
• Peppered corydorasGlowlight tetras need 24–28 °C (75–82 °F); peppered corydoras need 22–23 °C (72–73 °F). No temperature suits both.
• Rosy barbGlowlight tetras need 24–28 °C (75–82 °F); rosy barbs need 18–22 °C (64–72 °F). No temperature suits both.
• White cloud mountain minnowGlowlight tetras need 24–28 °C (75–82 °F); white cloud mountain minnows need 18–22 °C (64–72 °F). No temperature suits both.

Sources

Where sources differ, the value shown is computed as the most cautious one.

Check against another species Plan a tank