Couple problems day 25 flower

I noticed couple day ago that the older fan leaves were rapidly turning yellow and some even dropping off.

From what I understand this is too early in flower for leaves to be dropping off, by the time I harvest the plants will be bald?

I upped the the bloom feed yesterday as I thought it was due to lack of N but I'm also getting these crazy purple leaf tips.

I am using ionic nutrients:
Bloom 1.4 1.4 2.6
PK Boost 0 14.0 15.1 (every other feed)
SuperDrive
Green Fuse Stimulator (weekly)

I am using cuts of super skunk in canna terra plus soil mix under 600w hps. Average day temps 82 and rh 40%. Night temps drop around 10-15 degrees and rh stays around 40%.

Anyone got an idea if the increase in bloom feed should do the trick or do I have a bigger problem?

Cheers

Nothing at all has changed after upping bloom nutes, still getting the same rapidly yellowing leaves and they don't start from the bottom it's more from middle to top of the plant. Any ideas would help.

Thanks guys

Maybe a nitrogen deficiency.

I can almost bet your soil pH is off. Are you getting runoff every feed or watering? How much?

Your canopy temps should be a little lower also

since1991 said:

I can almost bet your soil pH is off. Are you getting runoff every feed or watering? How much?

Click to expand...

yeah ! what he said. looks like a drop in ph