I thought I would post my experiences so far on this QT for the first new fish for my 110 build. One Blue green chromis came with my used setup I purchased.
Well, the Golby is gone and here is what happened. I started with 4 fish from the LFS, Two percula's, one Royal Gamma and the Diamond Golby.
I had two methods I was debating on QT, One is a method using Prozi pro to start for the first seven days then Cupramine treatement and a second Prozi pro later used with the Cupramine. The other method is the TT method and that is the method I started with on these fish because I though...debated...no meds if they are ok should be better..?
Day 1, fish look good
Day 2, Fish are eating
Day 3, Still good
Day 4, did transfer and the Royal gamma feels confident enough to get out where I can see him....but...there is a problem, It is Velvet for sure..So I immediately started Cupramine after a quick PM. I observed that the Golby is not as active on day 4.
Day 5, I thought The Gamma was checking out, rapid breathing, mucus under gills. Observed Goby didn't eat today
Day 6 am, Royal Gamma is still around, golby seems to have swollen gills.
Day 6 pm, Golby is dead

Back to fish store for refund.
Day 7 Tank Transfer and increased Cupramine to full dose.
Day 7 I see improvement in the Gamma but the clowns had a strange night up at the surface...Not sure if this is odd or not? Later am realizing they are still having this behavior at night.
Day 8 (yesterday), Everyone is much more active today and Velvet is visably gone. On the Gamma I had observed White mucus below gills, sheen above pectoral, gold patch on pectoral and a large sphere hanging below one gill. All this was gone now.
Day 9, today..I will keep you posted. I am thinking that I will still do tank transfer on day 13 to clear the infection at the stage where they are released from the fish. Will this help things? I have 4 weeks before I will be gone for spring break and I would like to observe the fish for a week in the DT before I leave.
Thanks for all the help...