Much thanks to SteveC and SteveH.
I was wondering when the Square foot measure vs. Cubic foot measure was finally going to find its way into the discussion. This topic, if well hashed out, could provide an excellent resource for pond builders/designers seeking better information on biofiltration calculations than a lot of what is out there. Hard number calculations seem to work a lot better than mythology.
As to the fish weight vs. feed weight debate, in the case of a hybrid type pond I'd much rather go with the 1/3 fishweight waste production model in this instance, even though it isn't accurate. In a hybrid setting full of plants (decaying veggie matter) and turd laden gravel being "fluffed" into a cloud of bile, the SSA calculation needs to "go long"
