Well, I have a HOB skimmer, Ive adjusted this thing a million times over the last 5-6 months. It will work for a day or so, then it just fills up the cup with water. Ill empty the water, readjust then it will skim like crazy and foam out the lid and all, then the next day, full of water again. Its just ****ing me off. I dont think its gonna work for me. So, Probably during the beginning of 08' Im going to get an In-sump skimmer, whats a pretty good one for the money?