Res. stay in the low 70s to high 60s. Using a Hanna digital pH meter that I calibrate ever 2 weeks or so. After my last pH reading this morning, I did a test with a liquid test kit. Color that showed was right on the money so I'm pretty confident that my meter is working correctly and that my pH...
First grow and I'm having a lot of fun with this. However, this issue has been a mother trucker to resolve and I need some advice. As you can see, the tips of my leaves are turning on me. they seem to turn almost black at first, then the turn orange/amber and then white. I've racked my brain...