the nutes were gh powder.. no filtered water community tap ... i started @ 300ppms an bumped it up a 100 every week until i reached a cruising altitude of 1000ppms but only had to adjust ph when i did a rez change IT NEVER ROSE ABOVE 6.3 NEVER FELL BELOW 5.8 and i wish i had some way to explain it i would like to sound cool too...:rasta: