sweet, we get to debate!
First, let me say I thought about getting 1 rock for a 10g of the Florida stuff, just for fun. I have my doubts about how great a filter it is, but watching critters is cool
I felt with Reefer Rocks that after years it was still shedding the initial detritus. If you cook that stuff, first it will take a few months to really get cooking (since it has little to no bacteria to start with). Second, it will take a super long time to cure. It is loaded with thousands of years of terrestrial run off (aka dirt aka PO4).
I would rather get some
bubble algae rocks and throw them in the yard for a few days then cook them again. (in fact thats how I got my bunna branch filter in my display system

). You still have to restart the bacteria, but once it gets going you have years of stuff to clean out, rather than thousands of years of stuff (also gets that nasty Coraline out which limits anaerobic digestion).
Thats how I understand things as of now
On a side topic: I talked with E.B. and asked which rocks were best for filtration, had their been any studies on anaerobic capacity of different rocks...ect. It seems that even something as small as a grain of sand can have aerobic and anaerobic zones.
If aesthetics are out, and filtration per dollar is your calculation, it seems rubble is the way to go (without going into the potentials of sand). EB opinion as many types of rock from different areas would be the most beneficial because of species diversification.
Now, you have a tank full of stuff, no chance you will be adding any unknowns, base rock is smart. I might be inclined to buy the cheapest LR and ask for it to specifically be sent ground to avoid shipping or buy up an old tank... or something. As good as RR look, I am still unconvinced it is the best way to go. JME
