What's up GC, I have 3 plants going on in FFOF and fox farms full nute line up. I have some slight yellowing at the leaf tips in the middle on two of the plants. I was hoping someone could shed some light on what's going on with the girls. Thanks in advanced.
It's not yellowing on the leaf margins, it's becoming necrotic at the leaf tips. If the oldest & lowest leaves (not just the fan leaves) showed the problem first, then BoB is probably correct about the nutrient burn. If it started on the lower but full-sized fan leaves, it's likely Phosphorus deficiency.
I was thinking the same thing as far as the p def. The affected plants also have some purple on the fan leave stems.