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Glowlight tetra (Hemigrammus erythrozonus)
Photo: Tetra_Glowlight.jpg : gonzalovalenzuela derivative work: Kyknos ( talk ) · CC BY 2.0 via Wikimedia Commons

Glowlight tetra

Hemigrammus erythrozonus · Characidae

Also known as Glowlight

Beginner

A soft copper glow along a translucent body; calmer and hardier than a neon.

In short: A glowlight tetra needs at least 60 L (16 US gal), water at 22–28 °C (72–82 °F) and pH 5.8–7.5. It is peaceful, best kept in groups of 8 or more, and rated beginner to keep.

Minimum tank
60 L (16 US gal)
Temperature
22–28 °C (72–82 °F)
pH
5.8–7.5
Adult size
4 cm (1.6 in)
Group size
8+

Care requirements

Minimum tank volume
60 L (16 US gal)
Temperature
22–28 °C (72–82 °F)
pH
5.8–7.5
Hardness
2–15 dGH
Lifespan
3–6 years
Diet
Omnivore — micro pellets, flake, frozen daphnia.
Care level
Beginner

Origin & habitat

Native region
Essequibo basin, Guyana
Water type
Freshwater
Biotope
Tannin-stained forest streams
Natural conditions
Soft, slightly acidic, dimly lit water.

Behaviour & stocking

Temperament
Peaceful
Minimum group
8 fish
Swims
Mid-water
Good tank mates
Corydoras
Harlequin rasbora
Honey gourami
Avoid
Large cichlids
Tiger barb

Breeding & difficulty

Breeding difficulty
Intermediate
Sexing
Females are noticeably rounder.
Notes
Egg scatterer in fine-leaved plants; remove adults after spawning.
Common ailments
Ich
Fin rot
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