I am a fairly new grower. I had great success with my first grow. This grow is giving me a few problems. Im sure my ph is off, i ordered a ph meter, its on the way. My plants have been sick for about 2 weeks(i do all this on an extreme budget) i need to know how to safely raise or lower soil ph as fast as possible. My water always tests 6.0-6.5 with test strips. So that dont need fixing. All suggestions welcome.