I purchased a Via aqua 200 skimmer on sunday. I have adjusted it with low bubbles and raised the water to the cup. I have adjusted the bubbles high and lowered the water and I can not get it to skim anything. I like it with the bubbles low and the water high. When the bubbles are high it sends alot of bubbles into the sump where they get pumped into the main tank. are there skimmers any good. Does anybody have one and has had good luck with them? Any help would be great. Thanks