Hey, Shake.

Hope you are well.

My water's 7.6 on a good day, 740ppm, and full of bad bacteria.

Still, I've grown nice plants with it "just to see." I did have to flush a lot though. Watered to bigtime runoff every time, and "mini-flushed" the plants about every other watering, like: "feed / water / feed / flush" sequence.

Lotta nutes will lower that water pH significantly.

And take your time adding your acid and letting the reading stabilize... good time to really aerate the solution with shaking/mixing, too. :dance: Give the molecules a chance to get well acquainted.

Start checking your runoff, too. You may see a shift start taking place there. (Are you in soil with this?) That's what I'm shooting for when I adjust the water pH: correct environmental conditions for the roots. Hitting 5.8 or 6.3 on the nose with your ingoing water is pointless if the medium pH is way outta whack.

See how the plants do. It's strain-variable, I'm sure. But I've done fine using less acid / higher pH than I read about. Just my .02....Hermie :thumbsup:

EDIT: Whoops, typed too slow....DP has also beat this demon!