I felt like this was a good read... this may be what happened to your Idol...
Some general information on Velvet
It may have been in your tank and when you added the Idol (after having been bounced around from tank to tank for a couple months and been kinda stressed) it gets introduced to your tank that may have had velvet in the tank but the fish are okay with it cause it's not too bad or the fish had it but it wasn't too bad, but the Idol got stressed. It comes in gets the Velvet/loses the battle and you get a huge explosion of dinospores with the added stress of the new tank mate, Velvet outbreak... Just my 2 cents, because you seemed concerned that nothing had changed in a long time but this still happened, I though you might appreciate another view.

From another site "diatomaceous earth filters may also be economically employed to control this parasitic disease" It kills them in the tomont stage. Or a 50 micron filter...

What's the word today Dave?......... (keeping my fingers crossed)

Very, very sad indeed :cry:

I think the list of what's left is going to be short, lost the blue and kole Tangs today, not counting on this ending well for any of the others, they are looking rough, only positive is they are eating well and behavior is reasonably normal.

Fingers and toes crossed that this turns out OK. I was hoping to get to see the tank on one of my trips over to PR......sad if it ends poorly and there is no more tank:cry:

I doubt I would sell the tank, limited market for something this big and everybody would want it for nothing, If I have a total wipeout I will leave it alone for a few months before making any decision to tear down or restock. I do have a very nice blue face angel that was bought as a tiny juvi to replace the one I lost last year that is fat and happy in a 90 that will require a larger home at some point, Here's hoping for a monster tax return, there was at least 4 k worth of fish in there.

I hope it turns out ok for you
good luck

Wow .. I'm so very sorry to learn of your losses...

When it rains it pours, my wave box on the reef packed it in today, 3rd time in just over 2 years, what a POS. Amazing how much the flow in the tank changes without the wave, don't think I will waste my time getting it fixed again, just crank up the MP 40s. Can't wait to see what happens next.

:sad: