My very minimalistic SPS QT setup:
20 gallon tank, MP10 for circulation, heater for heating. Egg-crate for the frags. Lighting is a 4x24" T5 light with 2 ATI coral+, 2 ATI blue plus. Tunze ATO. No other equipment. Measured the PAR at the frag rack and it is about 200-250. A little on the low end but the corals will survive.
In preparation for getting frags I'll do a 15 gallon WC in my DT and use the water to fill up the SPS QT tank (I don't fill the QT tank all the way so there is less splashing).
Get a bunch of frags at once. Be it online, other people or the LFS. Once you put any new coral in with your existing ones, the timer resets. So you want to do it in batches.
Step 1: Inspect all the frags very closely. If I'm getting the frags from an online merchant that I really trust, I might leave it on the frag plug at this point, but if I'm getting it from somewhere I don't trust (like my local LFSes), I'll immediately cut the frags off the plug and do the initial dip unmounted.
If I find eggs in the inspection I'll either throw that frag away or clip off a small section of that I can closely inspect and see doesn't have any eggs. Just because I can't see any eggs doesn't mean they can't be there, but I'd much rather chop the frag than try to salvage a larger piece with eggs I can plainly see.
Step 2: bayer dip. As an aside, this
OXO steamer is by far my new favorite tool to assist my dips. Really easy to go from regular saltwater --> dip water --> back while minimizing handling (or mishandling) the frags.
Then inspect the water coming out from the bayer dip and look for any bad guys. If I see something like an AEFW I'll make a note of it but no reason to panic. I'll probably double back and re-inspect all the frags to see if I can find bites, but generally I'll have already seen this.
Step 3: Put them in the QT tank. The light is setup to turn on with the lights on my reef tank, so now the monitoring begins.
Step 4: Every 3rd or 4th day, do the whole process over again. Take out all the corals from the QT tank, inspect them for any bites/eggs, do a bayer dip, and inspect the bayer water after the dip is over. While the dip is going on I normally do a 6-7 gallon WC for the SPS QT tank.
I've now used this setup twice so I'm pretty happy with it.
The first time was when I got a couple of montis from a non-local LFS I knew nothing about. I think these were in QT for ~4 weeks, dipped every week and saw no evidence of any bad guys so they went into the DT.
The most recent time was a shipment of 10 frags was from a very reputable online retailer, and over 3 weeks and 6 dips I saw no sign of any bad guys, so after that point I moved them all to the DT.
I've dealt with AEFWs before and I'm pretty confident I can weed them out in the inspection/dipping phase, but I do like the extra confidence I get from monitoring them over a longer period of time. And none of the corals that have gone through the QT have had any health issues, all of them are happy and growing in my DT.