Po4 and nitrates

currentking

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Good morning,

I have searched several threads dealing with po4 and nitrates and haven’t really found a solution. About 2 weeks ago my nitrates were about 20 and po4 at .10. I added some Chaeto and tested last night. Nitrates are now at 0 and po4 at .11. What is the best way to lower po4 a little and get nitrates to about 10-15? I feed brine and mysis 2 times daily to my wrasse. My lights run from 9am-8pm and fuge light runs 8pm-8am.

do I reduce photo period in tank or fudge? Cut back on chaeto? Less feeding? More feeding? My acans look good for most of the day but then suck in later towards the end of the light cycle.
 

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