So I got my n03 up to 5 and my Po4 up to .02. Everything looked great but I went on vacation and came back to a large hair algae issue. I was able to tame it but my nitrate went to zero and po4 to .01. I left my skimmer off for the last three days trying to increase my nitrate and only got to 1 but now the algae is coming back. Do I run the skimmer or what? I want alittle algae but I want nitrates around 5. Thanks everyone