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Old 12-21-2013, 06:45 PM
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Cal_stir Cal_stir is offline
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Quote:
Originally Posted by Craigdillman View Post
I think general consensus is you want to keep it below 0.04ppm.Ive read some threads on RC showing making it absolute zero for too long had some decreased growth effects on certain Acro's after a few months. Ill look for the link


Edit found the link
http://www.reefcentral.com/forums/sh....php?t=1168053
0.03 seems to be ideal as po4 is essential for life in plants, animals and bacteria.
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