My flasher wrasse had about 1 week ago a clear moving thing on his fin. I did a freshwater dip and it went. Today I saw another clear thing moving and did another freshwater dip. About an hour later I am seeing another on his fin. I am wanting to dose prazi pro but i have a couple question. Do I have to do a 10% water change after 30 days and can I run carbon afterwards to remove it?

