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Would you recommend the Hanna No3 checker? But I am not sure if its worth since I dont test No3 alot.Very important to read the test kits in natural light. LEDs have red hues that will distort readings.
Color matching test kits is also not a perfect science. After some practice, you will get good at noticing the colors in between the different color swatches on the card and guesstimating the appropriate levels.
There is no space for a refugium in my red sea max nano without sump.. therefore I gotta find another solution. Maybe feed less and let my skimmer work harder?I don’t recommend Hanna NO3 test kit because of the expense. Your test kit is fine. The important thing is to keep doing the tests and getting levels down. Have you thought about cheap Refugium with chaeto to manage NO3?

