Hey, sorry to hear your frog is still not eating. Exactly how long has it been since the last time he ate anything? What are the exact temps and humidity in the enclosure? did you cover any of the sides as suggested? A picture of the frog and his new enclosure would be very helpful. So im going to back track a moment to the first post you put up due to him not eating. Im really thinking you may want to bring him to get checked out by a vet, the putting him in the sink and having him in the same substrate for 6 months may have led him to get a bacterial infection or something. You should always try to remind yourself that these guys absorb water through there skin, so what ever they are sitting in is going to end up going through there system. I imagine that substrate after that long became filled with toxins from the urine. When you look at him does anything else seem off about him? A picture would be very helpful. If you dig him up does he seem lethargic?