7Dwarfs Hercules plants are one of my favorite auto flower strains. They grow fast and robust. Mine finished around 65 -70 days. It had the best flavor and smell, dosen't even smell like weed when dried and cured. Smells fruity and when smoked has a sweet musk scent and flavor on the end of it...
I was suggesting using r/o water instead of tap water which contains impurities and metals. I wasn't Telling him to use humic acid to fix his plants, I was only adding that in for future reference. Humic acid is not an additive by the way.. Didn't mean to come across as one of those fix your...
Sounds and looks like the problem is in your tap water. What is the ph and ppm of your tap water? I only use filtered clean R/O water. Never had my plants do that.
Also try using Humbolt Flavorful Humic acid, it will help your plants not to stress out and keeps the root area healthy, and...