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Thread: Zero Nitrates?
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post #14 of (permalink) Old 01-01-2013, 03:34 AM
Algae Grower
Join Date: Jan 2012
Location: Downers Grove
Posts: 107
Do you have fish in the tank? I would be very surprised if your nitrates were zero if you did. I suspect your test kit is wrong.... try calibrating it Calibrating Test Kits - for non-Chemists, or test another tank to see if you get similar readings. I am doing ei daily, and have been slowly reducing the amount of nh3 (about 1/4 reccomended amount) because of high nitrates I would have by the end of the week (= or >40ppm). Most of it comes from fish waste/food.
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