Help! Problem with leaves don't know what is wrong

[sneakythumb]

My leaves are turning a crazy half yellow - half green. Please help. I've been feeding before this problem. So do not know what is going on. Just transplanted from red cups to 4 gallon pots with coco. But problem has not gone away. I've flushed a couple times. Gave only water for a couple days and no relief. I just started to use Myco Madness by Humboldt and Great White. I do not know it is those. Any help would be greatly appreciated.

Ph of nutes is 5.8, 1000-1150 ppm. RO water.

Photos of problem attached to post..

Thank you..

 

[woodtick45]

Re: HELLP! Problem with leaves don't know what is wrong

I have the exact same problem with an AK47 in soil. Did you figure out what was causing this ? I noticed the problem while it was under the t5 and didn't think much of it, but now under the hps this issue has gotten more pronounced.
All other plants are fine, all are getting the same care.

If I find a solution I'll let everyone know, best wishes

 

[Coke420]

 

[Coke420]

Re: HELLP! Problem with leaves don't know what is wrong

looks like a phosphorus defeciency