leaves showing discoloration on edges

the leaves on one of my girls is showing yellowing on the leaf edges. the other girls show nothing of this proplem. they are in 5th week of flowering, under a combination of HPS lights( 1- 400watt, and 2- 150watt) I turn them daily and rotate their positions weekly. i hope the pics will help with any diagnosis of this girl.

thanks kiss-ass

here are the pics

spaceman730 said:

the leaves on one of my girls is showing yellowing on the leaf edges. the other girls show nothing of this proplem. they are in 5th week of flowering, under a combination of HPS lights( 1- 400watt, and 2- 150watt) I turn them daily and rotate their positions weekly. i hope the pics will help with any diagnosis of this girl.

thanks kiss-ass

Click to expand...

Looks like to much nutes ocrrect me if im wrong! but other then that they look fine! good luck man

i believe nute burn starts at the top. Lack of starts at the bottom.

looks either like heat stress/burn or nute burn to me. what kind of ferts u been using?

i thought that it might be nute burn. we been using shultz 10-54-10 big blossom granular. should i go with no nutes for a week?? or just lighten up the dose. we have been using nutes with all watering,and watering every 3-4 days as needed. these girls don't seem to use much water as i am used to.

thanks for all the feedback, this is the best site and the best members.

You're probably starting to get nutelock, because that looks like a phosphorus deficiency to me. It's time for a flush, then lighten up on the nutes, and that should stop the problem from getting much worse.