master

Special addition Video - Aqua Master by Chane Rennie Check it out. Make sure you Like, Comment and Subscribe 8qMa_L7uCHM

Ok, am I the only one who can't distinguish a 5 ppm from a 40 ppm nitrate reading in a non-planted tank) Depending on how I hold the tube and the card, near the card, on the card, where I stand, what the lighting is (sunlight, halogen...), where Pluto is in relation to the ecliptic plane, etc...

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