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Originally Posted by danny zubot
75% to 80% of anoxic denitrification occure within the top 3/4 of and inch of the sand bed. I guess I'll be satisfied with my 1.5 to 2 inches.
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and for a properly loaded tank that is not overstocked the Live rock and skimming will handle all your de-nitrification needs.
for what it is worth I was one who jumped on the DSB bandwagon as it was all the rage when I was starting up. I started with 6 to 8" depth then about 1 year later I started having algae problems and other problems that I couldn't explain. I moved and removed all the sand except for 1/2 an inch and the problems went away. now the only reason I want to go totally bare bottom is so I can increase the flow in the tank through out the whole tank to aid in detritus removal.
Steve
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