my nitrates have always been pretty high when i've tested, so i'm not sure if that's the cause.
my phosphates are always around 7-10ppm also! so i'm not sure if that's the cause either
my phosphates have never really been that low (i dose 8th of a teaspoon over the EI)
I've decided to stop scrubing it with the magnets everyday and leave it on for a few weeks to go through the cycle