Hey i have about 3 inch RTC for about a month now. im growing him out in about 20 gallon bin right now and he will be in my 340 gallon pond with my koi when he grow up. about 2 days ago i notice him stop eating his food when i feed him. i have been feeding him raw shrimps since i have him. he is the only 1 in the bin no other fish. i do weekly water changes but last week i have a lot of homework and reports so i didnt do his water change for about a week and a half. i did the water and a day after i notice some of his fins are rip and the top fin is about 1/4 gone and he stop eating. i already did the water change and i added API medicine in there for curing fin rot. today is the 2nd day of treatment he look a little big better getting a little interest in food but still wont eat. he still swim around a lot. can any one tell me what going on is it fin rot or is it something else and when do u think he will eat again. i also added a little (half a tea spoon) of aquarium salt and some stress coat hoping that it will help. Thanks a lot!!!