Problem: I got a half moon Betta a week ago from Petco and he still hasn't eaten! He sits in one corner of the tank and hardly moves. I caught the fish laying on it's side for awhile at the bottom of the tank and I checked and he was still alive. I saw something red floating in the water and I...
What size is your tank? 5 gal
What temperature is your tank? 78
Does your tank have a filter? Yes
Does your tank have an air stone or other type of aeration? No
Is your tank heated? Yes
What tank mates does your betta fish live with? Plastic plants
What type of food do you feed...