These are the steps I take before adding a frag. I picked this up from another forum from two reefers in particular, Whisperer and Flamron.
The first step is to start with a close visual inspection of your frag.
Here is the frag in the bag:
Darth Maul Porites
Frag on original plug (possibly crawling with all kinds of pests (AEFW, red bugs, black bugs, nudi's of all kinds, etc)
Got to get the frag off the plug (I always do this or if I cannot remove the frag from plug I then cover the plug with zap gel)
Yes, some of the frag remains on old plug but less likely to bring in eggs by removing old plug
Frag sitting in 4ounces of either frag water or your tank water (with plug removed!!)
I then get out my "Bayer Advanced complete insect killer for Soil and Turf Concentrate" and a 10 ml syringe (This stuff is extremely hazardous, do not touch it with your skin, use in a well ventilated room and do not spill it.)
Then add 10 ml's of Bayer to the 4 ounces of water in the cup (make sure you use the exact same bottle as I have photographed, there are different versions of Bayer with different ingredients in similar looking containers). Regarding dosage, I use 10 mls of Bayer, but some people use as little as 1.25 mls of this Bayer to 4 ounces of frag or tank water.
This is what the cup looks like with the Bayer