Great thread , great grow , great plants !!!
Dubi I must say I’ve learned a lot about ph and ec in the past week. I admit I’ve always taken a very casual approach to watering and feeding; I would occasionally gauge my ph with the little color indicator vials, but nothing exact and I had not balanced any of my feedings to this point. These pens have really opened my eyes!
I’ve always suffered from brittle plants that finished too early. Now I see why. These OEs signaled to me they were getting locked out due to salt buildup early enough that I think I’ve corrected with a very large RO water flush. Large amounts of nutes were dropping my ph dramatically and I wasn’t adjusting back up....Now I am measuring and adjusting religiously.
The only thing I still need to do is gather runoff from the 30 gallon plants to better understand their current ph.... I’ve been able to do it with the smaller ones. But the yellowing has slowed and they are still stretching. I’ll report back with more science but I think it was DEFINITELY lockout.