I have 3 Fire bellied toads who were happy and eating, basically doing everything a happy toad does. but recently one has stopped eating its been 5 or more days now.We took him out and put him in a smaller tank but he still won't eat, i've tried crickets and meal woms(molted) he just steps on them. when his water get a little cold he starts freaking out and we have to heat the water constantly.I don't know what else to do.Please HELp!!