Originally Posted by mr_X
Yes, but in a 1" deep sand bed, you don't have to worry about that. There will never be enough to make a difference.
That's good. Thks! IJS I *had thought* ALL anaerobic type pockets in sand were bad. Anaerobic, in general, is good in saltwater I've learned from you as long as there's not large releases of gasses into the water column--I'm guessing b/c rock would release it slowly since it's not as malleable as sand is, there wouldn't be any large pockets of undesirable gasses. I really didn't know what the Live Rock was doing in SW
just knew I needed it. I just assumed it was a place for Nitrifying bacteria to hang out on like in FW
& Live Rock is just similar to the natural environment to the type of fish that live in SW
. It's interesting to know there's Anaerobic bacteria going on too!