LR and filters

[Son Of Skyline]

I can't imagine any amount of live rock to have the surface area for bacteria that you can get from some dedicated media. Most of the ceramic media available is small sized and very porous. I guess there could be an argument for using small pieces of LR rubble, but due to its inconsistency I'd imagine that this rubble could restrict flow and catch too much detritus.

Don't most people just ditch the biological filtration process in their filters and just let the LR in their tanks do all the work? I thought that's where the term "nitrate factory" came from.