I run mine at around 60 - 80 bubbles a sec and flow is just before a stream coming out ( i call it a broken stream ) This gives me a reading of 6.5 ish using Rowalith media.This is maintaining calc. levels of 420 ish and Alk of 8.6 - 9.0 dkh.
I have been running at these level on my old 225 gal and as well on my new 315 gal reef as well. I do find i have to make a few adjustments from time to time to maintain this though. Depends on your feed pump as well. By the way my probe holder leaked as well for the first while , although i was able to seal it up.
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07-05-2009, 03:05 PM
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