So just to keep you thinking. I like marine pure alot, it lets me understand the exact surface area I am adding into the tank for example one sphere is 250 sq ft iirc. I run 3 of them in my 40 gal, it never has ammonia issues and water changes keep the nitrates down from the heavy feedings.
So I bring this up because its changed the way I think about using live rock for filtering, or for that matter I don't anymore. Live rock in the display for me is just homes for pods and for ascetics (aqua scape). If I wanted to add massive surface area for filtering i'll use the marine pure so I know how many sq-ft I get.
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