- Location
- NY
The rubble will be both submerged and out of the water but will be wet at all times there for no cycle.
Based on the pictures you've posted, the water flows out of the eggcrate chamber on the bottom. That is the indicator it's a drip system. The exposed LR is no different than using bioballs. Your claim to 'no cycle' is based on what? I'm just suggesting you rethink that part of your plumbing. My belief is you're going to experience almost continuous cycling from the exposed rock.
swimmer