I have a 6foot by 2 foot aquarium with 1 gibbiceps, 1saratoga jardini, 1 sleepy cod, and 1 archer fish. They are all still juveniles (the saratoga the biggest at 6 inches) The saratoga looks like his scales have been damaged in a couple of places, They are raised and a different colour. He has lost scales before and theyve grown back but i dont know what to do now, will he be okay?