Thanks for this post! I picked up a used set-up on craigslist and it came with a sea clone. (I'm actually very glad it did, since, not knowing any better, I was about to buy a new sea clone...) I've been fighting with this skimmer for weeks now, trying to adjust it on a daily basis, and have barely gotten anything in the collection cup. At first I though maybe the tank was too new and there wasn't much to skim, but at this point I'm thinking the skimmer should be pulling all kinds of nasty out of the tank. I'm excited to try these mods to see if I can get this thing working before I shell out for another skimmer. (a new one's not really in the budget right now.) I'll let you know how it goes.