Berghia worked out great for me. They swept the tank over about a month. I think they must have starved themselves out by now, as I haven't seen any signs in about three weeks. What suprised me was how fast they went once they got going. It was like they were building momentum. Also, they managed to get to the sump. I have no idea how. I have about 25 lbs of rock in the sump and some of the largest aips were on this rock. One day I noticed they were all gone. Not a bad performance at all. A great product and excellent service. I'll happily refer again in the future. Thanks again.
Date Added: 01-17-2006