Need help don't know whats going on

Yeah I ph before brewing to around 6.8
4 cups yes 55 gallon of water sorry in and out working

Well the fish stuff works within 3-4 days and goes well with the organic food.Id try that first.
Flushing organic stuff doesn't work the same,youll end up flushing the N out which is what your lacking.

I use this stuff if your in Canada.

Have you been spraying for bugs ? We know with mites that by the time you can see em, they're out of control.cant hurt with something like Low Coast Plant Therapy,it's pretty damn organic.