Hi Wilder - not having seen velvet I don't know what it actually looks like as much as a description might say.
He still manages to swim to the top to gulp for air and his breathing is slow. I have lowered his water level a bit so he doesn't have as far to go. He's not flicking or rubbing at the mo but hemight have been in the night. He did flick a bit yesterday. It's the appearance of these open sores that are worrying me now. Feel at a total loss.