Um. . do you really need a skimmer on a 7g. I have a 5g said:
Those were my thoughts when the tank was setup. I decided to just go with a HOB fuge and call it. But as I added sps I got a little too in to feeding with phyto and seriously overdosed the tank (it's funny when you do stuff you know you shouldn't!). I've basically tried everything else, I've done 3 gal. changes about once a week, I'm running phosban, I've now cut the MH for a few days and am just running the pc, and I still can't get rid of it. I've also added another small powerhead to up the flow some more too. Plus I think it'll be nice to have a skimmer to run every now and then once this is taken care of.