Quote:
Originally posted by Sindjin
ALL Live Rock will have PO4 buried in it...no matter where you get it. Thats just it. It ALL contains it. So it is VERY common. No one has ever tested it though.
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Anything that has live organisms will have phosphate in it. It's an essential part of protein and many other compounds associated with live animals. So I don't see what your point is, or why you assume that no one has tested it.