Okay, I have a 5 gallon tank with two african dwarf frogs in it. One of my african dwarf frogs has refused to eat for the past few weeks or longer. He is so skinny and he floats at the top. I read they are about to die when floating their still as can be. I try giving him frozen brine shrimp, blood worms, nothing. I don't know what I can do to get him to eat something. One thing that happened was the frog tanks heater broke and it is very cold up north. Haven't had a chance to get a new heater so do frogs refuse to eat when it is cold. The other frog is fine though which is weird. I feed them Hikari Frozen food, Brine, Bloodworms ect. I didn't realize how skinny one of the frogs were until now. I tweezer feed them to make sure they get their food each day. One obviously has been spitting food out. I put him in a paper bowl right now so he doesn't have to try hard to stay towards the top. Just filled the cup with a bunch of food to try to get him to eat. Moved him to a warmer place. Wish me Luck!