FerrisWorld
New Member
I recently got an 80 gallon tank and put all my fish in it. The lemon tetras, cory cats, and guppies all seem to be doing fine, but all my adult platies and a few adolescent ones seem unhappy, and they mostly hide or sit on the bottom of the tank with their fins back. One of them got a patch of white cloudy stuff on it's side and now seems to be dying, and some of the other fish were trying to eat it until i seperated it. I didn't have a heater before and it was about 61-65 F, and now I have a heater and it's about 75-77. I also added salt, but not much seems to have changed with either modification. So why are my platies unhappy while all my other fish are fine?