Thanks Tangster... I think I'll skip the plenum and DSB and just go with a sugarsized grain sand about 2-3 inches deep.
I didn't want to screw with building the plenum anyway...
and I'm going to use 130 lbs of argamax caribsea sand in my 90 gallon tank.
I am planning on buying about 10 lbs of Garf Grunge to kick start the tank / sand...
Thank you again.
