Played around with the plumbing last night. Not really sure what I did, but there are significantly less microbubbles making it into the sump. Still some noise issues, but it's really only a problem because I had to put the tank next to my bed. That's what happens when you go upgrade crazy in an apartment! I also noticed last night that my vortech was still making a lot of noises. I took a closer look, and yep, I've already bent one of the spacer pens. The vortech won't run without the spacer, at least not on my tank. (I think it's supposed to on different glass thicknesses). Anyway, trying to order a replacement from Eco Tech. I did noticed that if I turned the pump down, that killed the noise. And its really only noticeable at night because I've been turning off my return pump at night to sleep. The aquarium gets quiet, but then I can actually hear the vortech. Hopefully, this weekend I'll have more time to work out the noise issue. And hopefully, I can get this spacer pin from eco tech and not mess it up again. And I'm going to try really hard to get pics up tonight when I get the rock in. It's hard being a working reefer, as opposed to a student reefer. Never have time to do stuff.