What size tank do glowlight danios need?
At least 19 gallons (72 liters) for a group of 6. The smallest standard tank that works is the 20 gallon high. A bigger tank is always easier to keep stable. We give the size for an adult fish in a proper group, because the small fish in the shop will grow. Scientific name: Danio choprae.
How many glowlight danios in each tank size?
This is how many each standard tank carries comfortably if glowlight danios are the only fish in it. Share the tank with other species and the number goes down.
| Tank | How many glowlight danios |
|---|---|
| 5 gallon | Too small |
| 10 gallon | Too small |
| 20 gallon long | up to 19 |
| 29 gallon | up to 27 |
| 40 gallon breeder | up to 38 |
| 55 gallon | up to 52 |
| 75 gallon | 60 or more |
| 125 gallon | 60 or more |
Check glowlight danios against your own tank and other fish
Good to know
- Keep at least 6. Alone or in twos and threes, glowlight danios hide, stop eating well, or pick on each other.
- This is a jumper. Use a lid with no gaps.
Tank mates for glowlight danios
These animals like the same water, are a safe size, and have a temper that fits. It is a match on paper: always watch new tankmates for the first week.
- Black ruby barb
- Five-banded barb
- Bandit corydoras
- Bronze corydoras
- Hillstream loach
- Rosy red minnow
- Julii corydoras
- Penguin tetra
Poor matches
- Angelfish: Angelfish (about 6 in) can eat glowlight danio (about 1.2 in).
- Fancy goldfish: Goldfish do best with other fancy goldfish.
- Oscar: Oscar is aggressive and will bully or kill peaceful fish such as glowlight danio.
Questions and answers
What size tank do glowlight danios need?
At least 19 gallons (72 liters) for a group of 6. The smallest standard tank that works is the 20 gallon high. A bigger tank is always easier to keep stable.
How many glowlight danios should be kept together?
At least 6. Glowlight danios are social animals and only behave naturally in a group. A group of 8 or more is better if the tank has room.
Can glowlight danios live in a 10 gallon tank?
No. Glowlight danio needs at least 19 gallons (72 liters).
What temperature do glowlight danios need?
61–79 °F (16–26 °C), with a pH of 6–8. A heater is only needed if your room gets cold.
Can glowlight danios live with a betta?
Usually, yes, in a tank of 19 gallons (72 liters) or more. They like the same water: 75–79 °F (24–26 °C). Every betta has its own temper, so watch closely for the first week and have a spare tank ready.
More fish
- Red-eye tetra
- Head-and-tail-light tetra
- Pearl danio
- Emerald dwarf rasbora
- Phoenix rasbora
- Black ruby barb
- All 150 species
Adult size, tank size and water ranges follow the mainstream care consensus (Seriously Fish species profiles and FishBase maximum lengths). Where sources differ we use the more cautious figure. Stocking numbers come from our stocking calculator.