bruinsbro1997 said:Are there any other danios in the tank? What other fish in there? You should move him, those torn fins are wide open for a disease to sneak in and get him. Move him to a QT if you can.
QT stands for quarantine tank, it's for fish you want to quarantine before you put them into the main tank or for sick fish.Whats a QT?
Sorry I ain't quite picked up the abbreviations yet