clown sick

Hi all, Please help. Got this clown about a week ago. Appears to have some sort of white growth around its one gill and it's fin near said gill seems to be rotting. I'm setting up a quarantine holding tank while I wait for responses. Please help!

Hi everyone .So i’ve been lurking around for ages and its my time to traumatize you all .I set up a 20 gallon with 2 clown (orange ones) and a couple of soft corals (i’ll attach a photo) .Its been about 1 month ,and its going badddd .today i lost a clown ,so i’ve been doing research all day and...

My clown was in distress this morning, took this video for assistance. Moved her to my frag tank to keep others away. She’s very listless & seems to be breathing hard. Just after this Video I noticed she’s almost floating upside down. I hope the link works to my YouTube thanks so much!!