well i just got my hannah PPM meter today...my water came out to be 178 PPM so not as bad as i thought it would be..im about to mix up my first batch of nutes today, 1/4 strength 1-1-1 grow, micro, broom, with drop of superthrive per gallon, and half dose of fulvic acid(1/2 tblsp per gallon).. any ideas on the starting PPM levels for 1/4th strength? i was thinking 400ish including the base 178..too much or too little? i have no experience with using PPM as a measurement, jsut been following bottles and labels..we shall see!