You do need to get rid of that Peat Moss and replace it with Eco Earth Coconut Fiber substrate(not coconut husk). If he eats any of the moss he can become impacted(severly constipated) and possibly die.
He needs food everynight. As a baby this is a critical stage in his/her life when your frog needs a lot of food and vitamins as well as calcium. How much nutrition your frog recieves at this stage determines how healthy and well your frog will be as an adult. It all starts here so keep him/her fed/warm/moist/ and humid and he/she will be growing faster than you can track.