I also helped out and am an NJRC member. I'll tell you it was a fun time, while I was at the NJRC booth I met a couple guys from Manhatten reefs and it was nice to put a face to some screen names including the grand prize winner of the radion, lucky guy
I did find a couple nice sps deals you...
You don't need any chemicals. Get yourself a couple different size syringes so you can get in most area of the tank. Boil some fresh ro water and work quickly blast them with the boiling water when they retreat into there hole. If the water cools even a little put it back on the stove and boil...