What size tank do yellow labs need?
At least 40 gallons (150 liters) for a group of 4. The smallest standard tank that works is the 37 gallon. 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: Labidochromis caeruleus.
How many yellow labs in each tank size?
This is how many each standard tank carries comfortably if yellow labs are the only fish in it. Share the tank with other species and the number goes down.
| Tank | How many yellow labs |
|---|---|
| 5 gallon | Too small |
| 10 gallon | Too small |
| 20 gallon long | Too small |
| 29 gallon | Too small |
| 40 gallon breeder | up to 6 |
| 55 gallon | up to 9 |
| 75 gallon | up to 13 |
| 125 gallon | up to 21 |
Check yellow labs against your own tank and other fish
Good to know
- Lake Malawi fish: hard, alkaline water with other mbuna.
- Keep at least 4. In smaller numbers they are stressed, or one gets picked on.
Tank mates for yellow labs
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.
Poor matches
- Betta: They need different water: Yellow lab likes a pH of 7.6–8.6, betta likes 6–7.8.
- Neon tetra: These fish do not share a comfortable pH range. Choose fish from similar water.
- Fancy goldfish: Goldfish do best with other fancy goldfish.
- Oscar: Oscar (about 12 in) can eat yellow lab (about 4 in).
Questions and answers
What size tank do yellow labs need?
At least 40 gallons (150 liters) for a group of 4. The smallest standard tank that works is the 37 gallon. A bigger tank is always easier to keep stable.
How many yellow labs should be kept together?
At least 4. Yellow labs are social animals and only behave naturally in a group. More is better if the tank has room.
Can yellow labs live in a 10 gallon tank?
No. Yellow lab needs at least 40 gallons (150 liters).
What temperature do yellow labs need?
75–82 °F (24–28 °C), with a pH of 7.6–8.6. In most homes that means a heater.
Can yellow labs live with a betta?
It is not a good match. They need different water: Yellow lab likes a pH of 7.6–8.6, betta likes 6–7.8.
More fish
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.