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- Jul 14, 2019
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Your nitrates aren't terrible in fact I'd say about perfect as I'd like to have mine in that 10-15 range (I'm currently at 7.5). My phosphates are about .07-.08 now and I consistently use Seachem Phosguard in a media bag just plopped in the same chamber as my skimmer (do not put in return pump chamber if you choose to go this route). I will say this about Phosguard is that it is really powerful stuff so start with a small amount not the recommended amount per Seachem's instructions as you want to bring those phosphates down slowly over a longer period of time, maybe about 2 months as you don't want to shock any corals. Your corals do look pretty good to me so maybe when you bring down to .25 ppm or so see if you notice any negative affects and consider not coming down much lower. I personally believe in the 1 to 100 ratio and many will argue w/ me on this. Example if phosphates are .07 then nitrates at 7.0 prevent diatoms/gha/nuissance algae, but with that being said my corals seem to like my nitrates higher so guess I'll let them both come up some to once nitrate reach 10-15 range (tops).Yes I am using the Nitrate HR tester and it shows 11.7.
Phosphates are high at .56 using a Hanna phosphate ULR tester.