Weather / Dojo Loach
Misgurnus anguillicaudatus, also known as the Pond or Dojo loach. These cool-water tolerant loaches are a classic tankmate for Goldfish. They earned the name “Weather Loach” because they can allegedly sense barometric pressure changes, and become more active when rain is imminent. They can be kept alone but we strongly recommend having at least 3, as they are much more outgoing and comfortable when kept in groups.
These are young adults around 4″ long.
| Specification | Species: Misgurnus anguillicaudatus |
|---|---|
| Size | 4 inches (young adults) |
| Water Temperature | Cool water tolerant (60-75°F) |
| Group Size | Recommended minimum of 3 |
| Behavior | Active, social, responds to barometric pressure changes |
FAQ
Can Dojo loaches live with goldfish?
Yes, Dojo loaches are a classic tankmate for goldfish due to their similar water temperature preferences and peaceful nature.
How many Dojo loaches should I keep?
We strongly recommend keeping at least three Dojo loaches, as they are more active and comfortable in groups.
Do Dojo loaches react to weather changes?
Yes, they are known to become more active when barometric pressure changes, often showing increased movement before rain.

Austin Grant –
Bought three Dojo loaches for my goldfish tank. They’ve been active and peaceful since arrival. Noticed they move more when the weather is changing, which is fascinating. The tank feels more balanced now with them around.
James Bell –
First time keeping loaches. The three I got are very social and seem to enjoy each other’s company. They don’t stress the goldfish and are easy to care for in a cool water setup.
Adrian King –
The weather response is noticeable—just before a storm, they start swimming more and seem alert. Great addition to a community tank with goldfish.