Hello Fellow reefers. something I have been thinking about over the last month or so. my DSB I have had it since I started my four foot tank and for the last 6 months I have been battling with my Nitrates. some one gave me an idea of taking a 20mm pvc pipe and drill a hole 10mm from the bottom and blank off one end and slowly push it is the sand and leave it in there and this will allow the bad gasses to release which will assist me with my nitrates. so I would like to know your thoughts. or for me it is out with the dsb and I will fill the chamber with live rock and will turn a portion of the chamber into a refug. let me know your thoughts as my corals are fine but I know they could be better.