Wlachnit Past President BARcard Mar 11, 2021 #21 I used to run 6"+ DSB in my 80g refugium for my 300g. Yes, you have to be careful not disturb it because of the anaerobic zone. It became a PO4 trap, so I ditched it 5+ years ago.
I used to run 6"+ DSB in my 80g refugium for my 300g. Yes, you have to be careful not disturb it because of the anaerobic zone. It became a PO4 trap, so I ditched it 5+ years ago.
