This is what I've been wrestling withas well. But I've found my problems don't get better with less CalMAg.....5ml/gallon IS 300 ppms....I haven't found it improve my problems at all. That's why I'm swinging back the other way.......more CalMAg and less bloom nutes (as per my hydro guy) and so far it seems to be helping. The church and cc plant I have right now are really....cough, cough, quite flawless on the the 60/40 ratio. I'll try and post a pic later today.