Great tip! I didn't know that about getting them off the plug. I've been cutting down my frag plugs lately just to make them shorter and easier to get on the rock work.Most cooties that come in on new corals
Comes in on the frag plug anyway
I use a waterproof toothbrush to clean the the plugs off. This works in conjunction with dip, or inspite of it, say eggs or asterinas that may not be sensitive
Best practice is to cut the plugs off, and remount on your own new plugs