I added my skimmer and ran tests a few days later to give it a chance to kick in. And for the first time ever my phosphates did not measure .5. They are 0! Also, today, I found one of my two Chitons died . They sure are neat. I have finally started my own tank thread http://www.3reef.com/forums/show-off-your-fish-tanks/peredhil-55-gallon-thread-56156.html#post531566 So all future updates will probably be there. Thanks for reading my Clean up Crew documentation and I hope you have found it very useful!!!