I just got the hanna phosphate ULR checker and it gave me a reading of .02ppm idk if I'm getting a false reading or not because I have some green hair algae growing in my tank on some rock and zoa frag plugs i also had some cyano bacteria outbreak. I dont wanna dose for phosphates if I'm getting a false reading. I was originally using the salifert phosphate test kit and it was coming up at 0ppm. Just need some advice please and thanks


