I haven't dosed macros for 3 days, and then I tested nitrates this morning. It was in the 20-40 range, probably closer to 40. Then did a 50% water change, and tested the nitrates again. This time is was solidly in the 10-20 range. Range is now good. I'll monitor the level daily, to see how it goes, before I start dosing again. My phosphate test kit was at the very end of testing liquid, so I don't really trust the super high readings I'm getting. I need to get a new kit, then I'll check the phosphate levels. I'm still dosing micro's on the regular 3 times a week schedule. I don't think the algae is getting any worse, so we'll see.
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