I have a GT that I have raised from about 1" to its present size of 6" I am recently seperated and have just moved my tank from my ex-wifes house to my new house.She took care of my fish(well I might add)for the last 2 month so I have not seen them much untill the last week.I have noticed depressions on each gill plate I never saw befor along with a very slight hook in his tail.The depressions are very pronounced.His behavior and health seem fine.Is this an inbreeding thing like the hook in the tail or something else?Thanks for any responses.Tim