I'm mainly talking about 72 days for ich or velvet. I'd like to see how many people actually have a seperate coral Qt tank set up.
I can't say that I do (don't tell my fish!)
Yes I do, always!
But I do the TTM and dips on my corals just a quicker time frame.
Corals and inverts are as we know it not a carrier of the deceases but sure can have it on them same as you take out a rock from a sick tank to a healthy tank or just equipment/tools like a net or pump.
The transfer of deceases can be made easily.
I don't treat the inverts with anything and use just two 10 gallon tanks for that.
My corals do go in a frag tank and will be dipped on arrival and every 4/5 days after that for two months before they will even see my grow out frag tank.
Some say over kill but to me and many other hobbyist this is going to be the norm as you just can't trust anything anymore.
Oh yes.......... my fish do know as they went through the same quarantine room so they know protocol.
I do. The only thing I put straight in the DT are soft corals that aren't attached to a rock (so far mushrooms and gorgonians). I just dip and rinse those to get rid of the original water.
As evidenced by their strong survival abilities and resilient nature, we must take every precaution we know of to avoid introducing pests into our systems. I have several tanks which started out as QT tanks that are now designated specifically to what I was quarantining at the time because of what kept materializing on the specimans even up to 9 months being alone in there with no additions. This survivability intrigues me and I like to study it, so I keep them. Some pests form impenetrable cysts that dipping cannot affect so as @Diesel pointed out, we must keep on dipping for the entire life cycle of these pests in order to kill them when they get to their most vulnerable stage of their lives. I've dipped and scrubbed snail's and they still end up growing back what they had on their shells. Diligence, careful observation and precautions are absolutely necessary to prevent infestations in our systems. Just one larvae can become a plague in no time. For fish, I quarantine for 90 days because I want to make sure not even one super ich cyst survived.
Yes, you could do it differently like with longer pause between the transfer but it's a piece of mind to keep it the same as fish so you won't make mistakes.