Quote Originally Posted by WashougalWonder
I think you have nute burn. You are on the right track flushing. BUT, I have never grown under CFL, so........

You must get an accurate ph testing kit, you can get cheap drop test that is sufficient, and gotta keep the ingoing pH no lower than 6. Water pH can fluctuate by the day
I have bought a Milwaukee pH600 already, stated that too...

And, my lighting is mainly fluoro tubes if that makes a diff.

It may be nute burn but I doubt it. Im not arguing the point w/ ya it's just that I've been using the same dose for a bit now and have actually dropped it just a bit lately, thats when the prob got worse and lead me to believe it was a defieciency prob.

And ya, our water here is screwy!

I live at the end of a cul-de-sac and the neighborhoods water all comes from a pump station thats about 50 yards from our house. I've already noticed that the pH always jumps on Mon, Wed, and Fri but Tues, Thur, Sat and Sun the pH is about .5 lower. Workers show up and do something over there for an hour or two every Mon, Wed, and Fri too.