Hello everyone, I’ve a coral cat shark in our 175 gallon, and recently I’ve noticed that his mouth doesn’t shut all the way and it looks like his tongue is very swollen. From what I’ve researched now this is common when they aren’t getting the right supplements. He currently is 16 inches long and lives with a small stingray, a golden butterfly, and a blonde naso. He eats krill every day with some silversides once every other week or so but now I’ve found out I need to vary it more. I’ve seen that people use Mazuri supplements to get it under control, does this work? Any tips help please. Also please be kind as I am a minor.