You guys that have the big dream tanks with the nice sumps underneath... If you were to scoop out a little of the muck in the bottom of your (well-established) sump, what kind of stuff would you find in there?

I was looking at getting some of that GARF stuff for my araganite bed, but someone here told me to ask a sump-tank owner for some of his sludge...same stuff, apparently.

My objective is to get some more "life" into the tank. GARF makes a big deal about how their sand bed activator stuff has all these micro stars, and all this other stuff in it..they call it "Grunge." Anyone use this stuff?

Richard