nemosswamp
Aquarium Advice Newbie
- Joined
- Jul 29, 2020
- Messages
- 2
I have a 20L tank with 4 neon tetras, one platy, one black skirt tetra and Harlequin Rasbora. I'm new to this and this is my third (and finally successful) attempt at having fish. I have a couple of plants in my tanks and a few rocks. my black skirt tetra used to just lose its colour during water changes and when I turned on the light in the morning, but recently it has been silver for the majority of the day and rarely has its black colouring. I'm a bit worried. what is wrong?