Sorry guys, Im catching up on the last two pages so Im sorry if my post seem alil out of place.
As far as skimming is concerned... I recommend the bigger the better. I have a Reef Octo 200 Recirc & I love it!! I currently have 15 fish in my 92 & I feed heavily, I do a water change every 3 weeks. I tested my before I did my water change. 0 Nitrates, 0 Phosphates, etc... You have to have a good skimmer.
I have some GSP in my tank, but the rock that is covered w GSP is on my sand bed, so when ever it grows out of control, I trim it back & give it away, or trade it. I like it though.