If you take a frog in to your home for any length of time, it is best to just keep them as your pet. It is rarely a good idea to release it back into the wild. CRICKETS need to be his staple diet. Make sure the crickets and any other feeders are smaller than his mouth is wide. Meal worms should only be given as treats because they are high in chitin which can lead to intestinal blockage (impaction). You can also feed him fruit flies. Keeping a variety of feeders on hand is a good idea. The number of crickets that he should be eating per day depends on his size and age. My Gray tree frogs (I have 11) are 2 months old and they each eat about 7-10 crickets per day, the size of the crickets are about 1/8 inch. I also throw in some fruit flies each day so they can have a snack in between meals. If you have any other questions, don't hesitate to ask. Welcome to the forum.