If your betta fish appears to have discoloration at the edges of its fins, it may be a sign of fin rot. Fin rot discoloration ...

Female Koi bettas have gentler natures ... The main symptom is white dots appearing on the scales. Fin rot is another common ...

If a female approves of the nest ... also watch out for infection and diseases such as fin rot, dropsy, and swim bladder disease. While Betta fish can tolerate dirty water for a short period ...