well I had those bastards too in my frag tank downstairs, But all the water dumps into the same sump. My frag tank was loaded with them. Never saw one in my display. I did the interceptor thing as directed, shut down the bubbles in the skimmer and let the meds circulate for 13hrs before turning on my skimmer and doing a fresh carbon run. I couldnt believe it but I still had them. I was talking to a friend Dave Knuckles and he said to double the dose and not to wait so I tryed again. Mashing up two tables and mixing them into warm sea water and adding to my system. Again I shut the bubbles down on the Bubbleking 300 and shut down my carbon reactor. Man I felt so bad for the shrimp and crabs I couldnt get out, they were stumbling around like they drank a few six packs then light out for them. Ok waiting 12 hrs as this begun with adding the interceptor I never did a water change so all the meds were still in my sytem with the exception of a little skimmimg (4hrs) and a little carbon filtering (4hrs). Ok low and behold I go downstairs to check my frag system after waiting another 12 hrs and I look to see more bugs all over the glass, I put my reading glasses on and I swear the bugs were smiling at me! Now Im ripping, I valve off the flow thru the frag tank completly. I pump out all the water in the tank and let it sit without water for 3 days. ( this is like 5 or 6 weeks ago when it was really cold. BTW I left the few corals I had in there becuase they were mounted on rock and I didnt want to take the chance so The parished as well as the bugs. Im Not too sure why the interceptor didnt work for me even after I doubled the recomended dose. Well Im bug free , I did some thinking on how this could have happened since I take extreme caution when adding any live stock too my tank or system. I was out Exotic Pet In yonkers and I took a Piece of live rock back home and put it into my frag tank and a week later I had bugs.