Overview
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. They do not school and are generally compatible with other peaceful species.
Scientific Classification
| Rank | Classification |
|---|---|
| Family | Cobitidae |
| Genus | Misgurnus |
| Species | Misgurnus anguillicaudatus |
| Water type | freshwater |
Natural Habitat
Native to East Asia, the Weather Loach is found in slow-moving rivers and streams with dense vegetation.
Appearance
The Weather Loach has a slightly translucent body with yellowish-brown coloration and dark spots that provide excellent camouflage in its natural habitat.
Behavior
While generally peaceful, the Weather Loach can be aggressive towards similar species or those with similar body shapes. It is best kept in a species-specific tank or with fish that are not easily bullied.
| Trait | Value |
|---|---|
| Temperament | peaceful community fish |
| Schooling | No |
| Activity level | moderate |
Water Requirements
| Parameter | Ideal Range | Notes |
|---|---|---|
| Temperature | 15–22°C (59–72°F) | Use a reliable adjustable heater |
| pH | 6.5–7.5 | Avoid sudden swings |
| Hardness (GH) | 5-15 dGH dGH | Soft to moderately hard |
| Ammonia | 0 ppm | Any detectable ammonia signals a problem |
| Nitrite | 0 ppm | Toxic even at low levels |
| Nitrate | <20 ppm | Manage through regular partial water changes |
| Min. tank | 50L (13 gal) | Larger tanks are easier to keep stable |
Interesting Facts
- Can be used to control snail populations in the aquarium.
- Has a unique ability to swim backwards and can climb out of water to breathe.
- Is a popular pet in Japan, where it is considered a good luck charm.
📋 Full Care Guide
Ready to set up a tank for your Weather Loach? The complete care guide covers tank setup, feeding schedule, common diseases, tank mates, and breeding.
Read Weather Loach Care Guide →Related Species
Related Species & Guides
This species profile was reviewed for biological accuracy and practical aquarium care guidance. For suspected illness or disease, test your water parameters first and consult an aquatic veterinarian if symptoms persist.