Add some more nassis to overturn the sand....maybe even add another ph to get some more flow.
How much/often/what are you feeding?
What is your water source?
I feed minimal flakes every day, and frozen carnivor food (marine cuizine) and seaweed via veggie clip every other day. The waver is RO
I guess I will try the power head thing. I currently have two Koralia 3 power heads churning up the middle water column, I do have another Koralia Nano in the quarantine tank I could move to the main for light sand bed movement.
Well, before I start cannibalizing my quarantine equipment (or in other words buying a new powerhead) I guess I could manually churn the sand and see if that solves it.