loopyworm
Aquarium Advice Apprentice
Hi, last week one I noticed one of my male guppies was looking very thin and was starting to develop a bit of a curved back. He was still eating, but would spend all his time swimming alone at the top of the tank. Yesterday I found him lying at the bottom of the tank under the heater so I moved him to a small tank by himself. He ate a little last night, but today he won't eat and just lies on the bottom of the tank. Occasionally he will swim around the very bottom of the tank and he swam around the middle when I did a small water change. Does anybody have any idea as to what might be wrong with him?