Hi, my yellow long-nose butterfly has multiple white dots on its fins/body and scratches itself on the rock, most likely infected by ich. I looked through the forum and found that most of the suggestions pointed to copper safe or other copper powder-based medicine. I have Ich-X at hand, recommended by LFS previously. But I heard Ich-X can be very poisonous, and I want to confirm if this is safe to use to treat butterfly fish or if I should go get copper-based ones instead? Right now, this butterfly fish still looks very active and has a good appetite so far. Thanks!
