Yellowing of the edge of some of the leaves

[midniter]

What causes some of the leaves to turn yellow around the edge of the leaves?I have had no trouble with them at all,& my lights is raised up alittle high to get them to stretch some so i know it's not from heat.I have 2 plants that has some yelllowing but 2 dosen't,so could it be there ready to die and fall off,or am i not feeding them enough?Thx.

[serpentine5]

Could be... give more info as to strain, age, time in flower... all that... also what you are growing in and adding to them....

[headshake]

please fill out the troubleshooting form. (http://boards.cannabis.com/plant-problems/127058-troubleshooting-form-yay-you-know-you-wanted-one.html)

-shake

[midniter]

Well its not bad but as far as my strain it's 50% indica 50 % stavia ,it's CALLED A.MS.I looked a doc's page & there out of stock on it.I'm growing in mixed dirt,i had no problems accept they seemed alittle short,but they have took off now.There 6 weeks old i'm going to say and there beautiful plants accept the little yellowing of few leaves here and there on top few big leaves.I', going to take some pic's today i'll post!