Adding a little nutes on top? That's probably the reason for the burn,... could be wrong tho.

Leaving the water out (I'm assuming tap water here) allows chlorine to evaporate off of it, but by my experience doesn't much effect the PH.

As for the "Drop" color test, it's not very accurate over 6.8-7.0 nor is it accurate below 5.3. (I invested in a Pen, and tested the same water with both,... the drops said 8.5+ where the pen said 7.0, but both agreed on 6.5, On the low side, drops said 4.0- where the pen said 5.5?) If your using the paper test strips I'd kinda expect the same margin for error, tho I've never used them.


If your planning on flowering in about a month,... what do you plan on doing about lighting? I see CFL's in the pics,...... those girls are going to need a LOT of CFL's to flower them in a month!