No he is losing some weight and wasnt happy with the look of his stool i have some in the fridge from my other reptiles and was going to just add it to his mouth but i know they absorb stuff thriugh the skin as well
You should take him to a vet and have a fecal exam done so you can be sure whether he has worms or not. There are other parasites among other things that can cause weight loss. It is better to be sure before treating your frog for something he may or may not have.