CATDOLL : CATDOLL: Why do all the guppies turn black? (Why do guppies turn black?)

1. The blackening of guppies may be caused by the deterioration of water quality.

2. At this time, you need to change the water immediately and disinfect the fish tank thoroughly.

3. After that, you can continue to raise the fish as normal. Generally, no medication or other treatment is required.

4. It may also be caused by lower water temperature.

5. At this time, you need to use a heating rod to slowly raise the water temperature to about 25℃.

6. It may also be caused by needle tail disease.

7. At this time, the blackened fish need to be fed separately from the normal fish.

8. Soak the sick fish in salt water for 20 minutes every day for sterilization treatment.