I just recently purchased 2 red eye tree frogs. I am concerned that they are not eating enough. I have a pretty small tank 12x12x20. I put a fair amount of vegetation where the crickets can easily hide. I know that they are eating but when I wake up there are still some crickets in the tank. I put approx 10 small crickets in the tank and there were 3 that I still could see and maybe be more that I couldn't see. Should I continue to feed them this way or should a be using a separate feed area for them to get a good idea of how much they want to eat? The crickets I have a very tiny and feel that they could have eaten more. Thanks in advanced