What size tank do peacock gudgeons need?
At least 15 gallons (57 liters) for a pair. The smallest standard tank that works is the 15 gallon. A bigger tank is always easier to keep stable. We give the size for an adult fish in a pair, because the small fish in the shop will grow. Scientific name: Tateurndina ocellicauda.
How many peacock gudgeons in each tank size?
This is how many each standard tank carries comfortably if peacock gudgeons are the only fish in it. Share the tank with other species and the number goes down.
| Tank | How many peacock gudgeons |
|---|---|
| 5 gallon | Too small |
| 10 gallon | Too small |
| 20 gallon long | 2 |
| 29 gallon | 2 |
| 40 gallon breeder | up to 4 |
| 55 gallon | up to 6 |
| 75 gallon | up to 8 |
| 125 gallon | up to 16 |
Check peacock gudgeons against your own tank and other fish
Good to know
- Best kept as a pair. A pair will claim a patch of the tank floor and defend it, most of all when they have eggs.
Tank mates for peacock gudgeons
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.
- Platy
- Harlequin rasbora
- Honey gourami
- Bloodfin tetra
- Guppy
- Neon tetra
- Celestial pearl danio
- Glowlight tetra
Poor matches
- Fancy goldfish: Goldfish do best with other fancy goldfish.
- Oscar: Oscar is aggressive and will bully or kill peaceful fish such as peacock gudgeon.
- Molly: They need different water: Peacock gudgeon likes a pH of 6.5–7.8, molly likes 7.5–8.5.
Questions and answers
What size tank do peacock gudgeons need?
At least 15 gallons (57 liters) for a pair. The smallest standard tank that works is the 15 gallon. A bigger tank is always easier to keep stable.
How many peacock gudgeons should be kept together?
At least 2. Peacock gudgeons are social animals and only behave naturally in a group. More is better if the tank has room.
Can peacock gudgeons live in a 10 gallon tank?
No. Peacock gudgeon needs at least 15 gallons (57 liters).
What temperature do peacock gudgeons need?
72–79 °F (22–26 °C), with a pH of 6.5–7.8. In most homes that means a heater.
Can peacock gudgeons live with a betta?
Usually, yes, in a tank of 15 gallons (57 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
- Dwarf chain loach
- Chinese algae eater
- Rubber lip pleco
- Scarlet badis
- Black ghost knifefish
- Tinfoil barb
- All 118 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.