Do you have the UTH on the bottom right now? Pac man frogs bury to cool off so if its on the bottom he cant control his body temperature and it will really throw him off. You always want to put these on the side never on the bottom. And if its on the bottom and you don't have one of those thermometers that go into the substrate hes probably cooking. The nightcrawlers you give by tongs or drop it in front of him but make sure he eats it. At 2 inches if the nightcrawler is a big one you can cut it in half and if its a smaller one you could give him the whole worm. The live plants yes help with humidity but these guys are like tanks and he will probably dig them up burying himself or he will just plow over them. So that one is really up to you.