i'm sure my protein skimmer is not working properly. I do get some mucky water in the collection chamber, but not nearly the amount that i'v read you should get. I can even seem to get the bubbles to come up the tube. The pump is working, and it is moving water throughout it. Can someone give me the 411 on protein skimmers, (in laymens terms) and some advice on how to make it work most effectively.