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The center section of my 20g. fuge contains about 30pcs of live rock and two bags of Seachem matrix. The section is a low flow area and a LOT of detritus settles out on the bare bottom. When my nitrates get back to less than 5ppm. I am going to slowly remove the rock and see if the matrix is sufficient. My logic is if I don't have to pull the rock and rinse it I might do better husbandry. That seems like a more realistic kption than my hit and miss routine. I have begun removing my oolite sand bed and replacing it in thirds with coarser sand which I can actually vacuum. I replaced the first section about 2 months ago allowing the new stuff to populate before continuing.
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