Help.....please

[BudBlazewell]

Im a noob when it comes to this, whats the most likely cause of this happening to the leaves. I dont know if they are indicas or stativas, i just know the name it was given "purple princess". It was from seed. They are aprox. 2 months old, growing indoors with a sunleaves pioneer VI 6 x 54w relamp with T5 HO 54w fluorescent type lamp 120v 3A 60Hz 324w. The bulbs are vitalume plus Grow bulbs. They are in 5 gallon buckets using Scott's moisture contol soil. I used root and grow for their first few waterings to establish the roots in the soil after that i have not gave them nutrients at all since then. I water them every 4 to 5 days depending on the soil moisture. I have it at a constant temperature of 75 degrees f. With fans going for proper ventilation. The plants are on a 20/4 hr light cycle with a timer so its constant. Everything i do is the same for all my plants and only one plant is having issues. Ive scoured the internet for a solution to my problem but came up empty handed. Ohh and since i live near mountains i get the luxury of using natural spring water which i know is safe because I drink it.

BudBlazewell Reviewed by BudBlazewell on 05-17-2012. Help.....please Im a noob when it comes to this, whats the most likely cause of this happening to the leaves. I dont know if they are indicas or stativas, i just know the name it was given "purple princess". It was from seed. They are aprox. 2 months old, growing indoors with a sunleaves pioneer VI 6 x 54w relamp with T5 HO 54w fluorescent type lamp 120v 3A 60Hz 324w. The bulbs are vitalume plus Grow bulbs. They are in 5 gallon buckets using Scott's moisture contol soil. I used root and grow for their first Rating: 5

[BudBlazewell]

I forgot something i use natural pesticides also (a combination of steinernema and heterohabditis nematodes) about 500 per bucket

[silent leprechaun]

Looks to me like you heat stressed it off the lights. Was that leaf close to any of your lights ?

Other than that:
I would say it is a phosphorous issue. Phosphorous is vital for a plant especially during the bloom stage. It is the most important for blooming.

[BudBlazewell]

That's what i thought at first, so I raised my lamps to about 5ft above them; I still have that problem. What gets me is that its only the one plant.