Is that multi-colored leaved plant a croton plant? If you put crickets in the tank to feed any future frogs, the poison from the croton plant could make the crickets poisonous if they munch on it. I almost put a croton in my tank but a member of the dart den forums let me know that they were too poisonous to put in the tank. All the other plants look great and I'm sure any frog would love hanging out in that tank. I like how you made the little pond with the gravel. I've seen pictures of tanks on the internet where the water was so deep the frogs could drown.