Glowlight Tetra
Hemigrammus erythrozonus
Family: Characidae • Origin: South America
Glowlight Tetras have a bright orange-red iridescent stripe that appears to glow under subdued lighting. Very hardy.
Min Tank
10 gal
Max Size
1.6"
Temperature
74-82°F
pH
6-7.5
Lifespan
4 years
School Size
6+
Swim Level
middle
Hardness
4-15 dGH
peacefulbeginneromnivoreschooling
Care Tips
- • Looks best under dim lighting
- • Very hardy — good beginner fish
- • Keep in groups of 6+
- • Tolerates wide water conditions
- • Peaceful with everything
Feeding: Flakes, micro pellets, frozen foods.
Compatibility Notes: Hardy, peaceful, and beautiful. Glowing orange-red stripe looks stunning in dim lighting.
Tank Setup & Water Parameters
Tank Requirements
- Minimum Tank Size
- 10 gallons
- Recommended Tank Size
- 20 gallons
- Swimming Level
- middle
- Minimum School Size
- 6+ fish
Water Parameters
- Temperature
- 74–82°F
- pH Range
- 6–7.5
- Hardness (dGH)
- 4–15
- Water Type
- freshwater
Behavior & Temperament
- Temperament
- peaceful
- Aggression Level
- 1/5
- Schooling
- Yes
- Territorial
- No
- Fin Nipper
- No
- Predatory
- No
- Diet Type
- omnivore
- Growth Rate
- moderate
Hardy, peaceful, and beautiful. Glowing orange-red stripe looks stunning in dim lighting.
Breeding
- Breeding Type
- egg layer
- Breeding Difficulty
- moderate
- Lifespan
- 4 years
Ideal For
10 galloncommunitybeginners
Compatible Tank Mates
View all →
Neon Tetra
Paracheirodon innesi
70-81°FpH 6-710+ gal
peacefulschooling 6+1.5"
Cardinal Tetra
Paracheirodon axelrodi
73-81°FpH 4.5-6.510+ gal
peacefulschooling 6+2"
Ember Tetra
Hyphessobrycon amandae
73-84°FpH 5.5-75+ gal
peacefulschooling 8+0.8"
Rummy Nose Tetra
Hemigrammus rhodostomus
75-84°FpH 5.5-720+ gal
peacefulschooling 6+2.5"
Black Neon Tetra
Hyphessobrycon herbertaxelrodi
73-81°FpH 5.5-7.510+ gal
peacefulschooling 6+1.6"
Serpae Tetra
Hyphessobrycon eques
72-82°FpH 6-7.520+ gal
semi-aggressiveschooling 6+1.75"
Similar Species
Neon Tetra
Paracheirodon innesi
70-81°FpH 6-710+ gal
peacefulschooling 6+1.5"
Ember Tetra
Hyphessobrycon amandae
73-84°FpH 5.5-75+ gal
peacefulschooling 8+0.8"
Black Neon Tetra
Hyphessobrycon herbertaxelrodi
73-81°FpH 5.5-7.510+ gal
peacefulschooling 6+1.6"
Lemon Tetra
Hyphessobrycon pulchripinnis
73-82°FpH 5.5-7.510+ gal
peacefulschooling 6+2"