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Where can I get a cheap 1 of these.... and how do I lower the ph in my soil if its too high.... Im flowering 1 plant right now and it looks like ph might be messin up, leaves are curling in and under like there trying to roll together or something....???
Get teh liquid pH indicator drops, which are way more accurate than a metal probe soil tester, and cheaper too. REad the flushing sticky in 'problems; for how to use them.
In emergencies, you can use cider vinegar to lower pH, but I would straongly advise actual horticultural ph down from the hydro shop. They also sell the indicator.
There are many reasons your leaves could be curling; can you post pics and fill out the form in 'problems'?