I just thought I would let everyone know what an asshole I am. I have been bragging about my low PPMs and great results when the fact was my Bluelab Guardian meter (PPM/PH/Temp) was giving bad PPM readouts. The PPM probe is factory calibrated and cannot be recalibrated so I brought the unit back to the store and got a new one. I tested the new unit there at the store and it is spot on. I guess the last one was a faulty unit. Anyways when I thought my PPM was 430, it was really 950, which is way more realistic for the amount of stuff that I put into my res. Another lesson learned.