plant problem

can someone please tell me whats wrong with my plant and the possible solution to my problem??? I am using a hydroponic system

Yikes! What's your pH? That hardly looks like weed!

Have to agree with jd, that doesn't look like weed. Need more info, lights,nutes,ph, ppm etc.

Whats your pH and ppm?

No matter what kind of plant its over fed. PPMs too high. pH must be at least in range, seems its nutrient uptake is just fine. And more info as mentioned would help a bunch...

Your over feeding your plant

Stop spraying the leaves