just make sure that you are feeding him good pellet foods that will help him with his color and kok formation. he's really nice looking. Take care of your water issues and I think he will be a happy fish again. I purchased crushed coral so stabilize my ph and I put it in a media bag in my tank. So you haven't done anything beside a water change since his kok shrunk? again make sure that when you do water change the temperature matches and you put in the prime and mixed it before putting it into the tank. (i know you said the temp doesn't fluctuate much and that it's well water but just check the temp to make sure)


