so i woke up this morning and my calico fullsbornian was swiming at the top really beat up and when i got home from work he was dead. i noticed that all my fish were beating up on it this morning what should i do so i dont lose more fish
More hiding areas... more plants.. rearange the tank.. take out females and have all males... get a bigger tank.. have less fish... add aquarium salt or malawi salt according to directions to promote healing in the injured ones and also to aleviate some of the stress.. sorry for your loss