Any one here have experience with HLLE. My sailfin has it . Water has been tested heavily so all is good there. I did run carbon for one day so I have been doing water changes to try to get that out. He is with only one other fish so it’s for sure not over crowded. Idk what to do. He is breathing super fast and hiding more, swimming weird, but still eats a lot. Feeding mysis and nori.