Phosphate question

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Phosphate question

Postby creik on Sun Mar 10, 2013 2:12 pm

I have a 12gal nano, reef, running for about 8 months now. All parameters normal and stable, including/except phosphate at 0.25 with API test kit.
I would like to get this down to zero....
I buy my RO from LFS. When I test the LFS water, after mixing my reef crystals, it also tests at 0.25 (exactly the same color). My test kit is brand new.
I do not have an algae problem, and my feeding is not over the top IMO. All my livestock/corals/etc. are all doing well.
Any suggestions? Should I just accept it?
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Re: Phosphate question

Postby jelly on Sun Mar 10, 2013 5:14 pm

run some GFO
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Re: Phosphate question

Postby Socratic Monologue on Sun Mar 10, 2013 5:35 pm

Colorimetric phosphate test kits are not really all that useful at the ranges reef tanks run; if your tank really had that level of PO4, you'd have an algae bloom. You confirmed the worthlessness of the test kit by testing known pure water. What Jelly said is right in any event; regarding knowing the actual level, either don't test at all, or get a digital tester (Hannah checker is precise and reliable IME).
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