C
c-ray
maybe i am missing something...but isnt promix hp inert with no nutes(other than mykos if you get that bag) other than a small starter formula thats good for a few days?
it would seem weird to me that a peat/perlite mix would pass and be borderline high on P....care to explain and tell me what the tests on promix hp were?
i currently use promix hp with myco...but i feed every feeding with a plain water once a week, plants look great...wondering if maybe you made a mistake?
other than that great thread man, good info in here!
apparently peat moss naturally contains lots of potassium