Posting on behalf of a friend.
I marine buddy of mine bought a Butterfly and noticed within a day or two it was smothered in spots. I advised removing fish and treating immediately with Cupermine (plus 6 week fallow period for reef tank) but in less than a week all but one fish is very badly infected and several are dead.
I told him I thought it was marine velvet rather than ick at the speed its progressing, number of spots, laboured breathing, hiding and heavy mucus etc. But I’m not a expert telling the difference. So attached some photos he sent me for confirmation.
He has a single clown showing no symptoms and asked if it survives what will happen?
I’m concerned it maybe a carrier indefinitely without treatment? But is there a point the velvet will disappear on its own with a single fish that’s immune. Ive read it’s rare for fish to have immunity to velvet but not unheard of in Clownfish.
So is this velvet?

I marine buddy of mine bought a Butterfly and noticed within a day or two it was smothered in spots. I advised removing fish and treating immediately with Cupermine (plus 6 week fallow period for reef tank) but in less than a week all but one fish is very badly infected and several are dead.
I told him I thought it was marine velvet rather than ick at the speed its progressing, number of spots, laboured breathing, hiding and heavy mucus etc. But I’m not a expert telling the difference. So attached some photos he sent me for confirmation.
He has a single clown showing no symptoms and asked if it survives what will happen?
I’m concerned it maybe a carrier indefinitely without treatment? But is there a point the velvet will disappear on its own with a single fish that’s immune. Ive read it’s rare for fish to have immunity to velvet but not unheard of in Clownfish.
So is this velvet?


