Choosing Weather Loach Tank Mates
Good Weather Loach tank mates share the same temperature and pH window, will not be eaten by (or eat) the Weather Loach, and do not compete for the same swimming zone or feeding time. Each pair guide below scores those factors from 0 to 100 and gives the minimum tank size for keeping both species together.
Start with the highest-scoring pairs; anything under 45 is listed so you know what to avoid, not as a recommendation.
Care baseline
The Weather Loach, also known as the Weather Fish, is a popular addition to freshwater aquariums due to its peaceful nature and intriguing behavior. It has a slender, eel-like body with a translucent appearance and dark spots. These loaches are active and enjoy exploring their tank, making them a moderate activity level fish.
| Temperature | 50–77°F |
| pH | 6.0–8.0 |
| Adult size | 11.0 in |
| Minimum group | 3 |