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prow · 09-18-2007, 09:03 PM

most plenums troubles are caused by critters in the sandbed. you need a good 3-4" of undisturbed substrate on top of the voided space. small micro screens work great in preventing the critters from burrowing down and exposing the voided space to higher levels of O2 and releases all the bad stuff back into the water.

09-18-2007, 09:03 PM	#7 (permalink)
prow Tridacna maxima Join Date: May 2005 Location: Redondo Beach, CA Posts: 4,262 View Gallery Karma Komment Add yours!	Re: Plenum versus Refugium most plenums troubles are caused by critters in the sandbed. you need a good 3-4" of undisturbed substrate on top of the voided space. small micro screens work great in preventing the critters from burrowing down and exposing the voided space to higher levels of O2 and releases all the bad stuff back into the water. __________________ "He who sees things grow from their beginnings shall have the finest view of them" ........Aristotle........ "The only difference between me and a madman is that I'm not mad." - Salvador Dali my chronicle........ http://www.reefsanctuary.com/forums/...al-system.html my clamicle..........http://www.reefsanctuary.com/forums/...my-tank-d.html