Aquarium and pondwater temperature
|
| Temperature C |
| Temperature F | ||||
Type |
| Min | Ideal | Max |
| Min | Ideal | Max |
Koi* |
| 4 | 18 | 26 |
| 39 | 64.5 | 78.8 |
Pond* |
| 4 | 18 | 26 |
| 39 | 64.5 | 78.8 |
Coldwater aquarium* |
| 10 | 18 | 26 |
| 50 | 64.5 | 78.8 |
Tropical aquarium |
| 23 | 24.5 | 26 |
| 73 | 76 | 78.8 |
Discus |
| 27 | 29 | 31 |
| 81 | 84 | 88 |
Cichlid |
| 23 | 24.5 | 26 |
| 73 | 76 | 78.8 |
Fish only marine aquarium |
| 23 | 24.5 | 27 |
| 73 | 76 | 78.8 |
Reef aquarium |
| 23 | 24.5 | 26 |
| 73 | 76 | 78.8 |
* At temperatures below 12C/55F you should stop feeding your fish, and at temperatures above 12C/55F you should slowly start feeding again.
Temperature control is essential for the health of your fish. The increase in temperature can increase free ammonia levels, decreasing oxygen and lead to high levels of bacteria that could cause illness.