Since I suggested that Siptang show us under his tank, I figured it's only fair you saw under mine.
That sounds dirtier than it is. No, seriously....it's not terribly dirty under there. Look:
The right side cabinet (where the ATO bin is):
By the way, yes, this power bar is screwed into the wood, not balanced on the water bin. Heh.
The left side cabinet is for cords and test kits. This way most of the electrical is safe and dry:
The cords may look disorganized, but they're all labeled at least.
And finally.....where the magic happens:
The return tubes you see here are coming from a bioplastics reactor and a GFO reactor.
That's my $120 Marineland skimmer. I don't know why people bash these things. I love mine, and it produces this much skimmate every 3-4 days. Just let it break in for a few days, keep the water level constant in the skimmer section, and you're golden.