Hi, my tank has been up and running for a little over 5 months, and I noticed the other day that my clown fish has a white mark on one side of his mouth? Does anyone no what this is, or if it’s just lack of malnutrition, if it is I just got new food today to see if he likes it more but other than that I don’t know what it is. He swims fine, and is currently pairing with a Duncan ( I think, he keeps swimming in them so?), and he eats all his food. Please let me know what this is and if it needs to be medicated! Thanks!
-Ezra
-Ezra