Hey guys.. for anyone that has a PS2 skimmer running on their Fluval Evo, are you getting micro bubbles?? I've had it running for almost 2 weeks now and cannot seem to get the adjustment just right. I tried adding a bigger sponge near the output of the skimmer to try and collect more but it still isn't helping. I also have filter floss in the 2nd chamber and that doesn't seem to help either. Any ideas?? Thanks!