yeah thats the first thing i checked. trust me. i dont know what to do though i just found some kind of parasite in my tank and it has to be from the new redtail so i took him out immediatly. im trying to get a pic of this thing but it wont stop moving. its round and kinda clear with little legs, kind of like a little crab. i need to find out what i need to do to take precautions. any info?