So I recently got a 10 gal
tank for 6 glofish tetras and I had some issues at first. The first night I had one die and same for the second night and was confused so I tested my water and all the parameters are good and I havenít had any issues. Then just recently I noticed one of my fish is missing itís tail fin and the top fin is slightly mangled. I canít quite tell if itís a bully fish or not because tetras are playful nipping fish but Iím worried if it is a bully should I isolate it or no because theyíre schooling fish. Iím kind of confused, any suggestions?