I have a RES and he crawled out of the tank 2 weeks ago. I just found him. I called the vet and asked if there was anything I was sposed to do before introducing him back into the water. and they sad no.... I put him in the water and he cant seem to sink?? he trys to swim down but just floats back up. I think its because he was all dried up and his body needs to take in water?? Any ideas?