Question about bio-balls

[Paul28]

Do you have alot of good flow throgh your live rock to prevent dead spots ?

[wesheltonj]

I've got a ton of flow, I have three vortech 40w powerheads along the back wall of the tank, on about half flow. Which is about 1500 g/hr each. I can make 3000 g/hr with each but the aminals don't like that.

[tony]

the live rock doesnt have to be rubble per say. i think this trend was started with the nano peoples. if your sump is big enough throw 40-50 lbs of rock in there (or more or less).

[ErikH]

I put my money in rock and sand. I have two engineers that are 10"+ and they stir the sand without anhillating my microfauna. I believe that the microfaunas role in this process is also a strong one, as well as what the gobies do. The microfauna helps to devour excess detritus, which helps keep the system in good balance. I have a feeling this is why people attain dead sand beds after a few years because there is nothing left alive as far as microfauna goes. It's speculation, but it's my best guess.