Need help with diagnosing plant problems

[amax420]

So.. I have two DP Blueberry's on day 30 of flower. I am only using a 150W HID in a stealth water culture closet grow. The main cola on #1 was within inches of of the HID. I noticed there were a couple of singed hairs. I don't think it's too bad but would like some advice. Also, I am seeing some fan leaves curling upward and downward towards the bottom of both plants. Could this be from lack of light? I have removed any crisp leaves that were drooping toward the bottom. I am seeing yellow tips on one or two leaves of #2. There are also a few leaves on #2 that appear to be sort of spotty. I have attached several photos showing the issues at hand. Are these normal or does something need to be done? Will the cola continue to grow. See the pics and let me know what you guys think.

Any advice is MUCH appreciated.

 

[gopherbuddah]

You look as though you have a couple issues. As far as the crispy tops, you want to move those away from the light away. Put your hand between the light and the plant and if your hand gets hot, your plant gets hot. What kind of nutes are you using and how often do you water? Some of the pics look like your plant may be a little thirsty.

 

[amax420]

You look as though you have a couple issues. As far as the crispy tops, you want to move those away from the light away. Put your hand between the light and the plant and if your hand gets hot, your plant gets hot. What kind of nutes are you using and how often do you water? Some of the pics look like your plant may be a little thirsty.

Using Dyna-Gro - Bloom at the moment. Used Dyna-Gro - Grow during veg. Change 5 gal res every 7-10 days. Will leaves droop and curl if they are not receiving enough light?

 

[gopherbuddah]

I can only speak from my expierence and I've never had that issue. My bottom growth stays small but healthy. I guess I wasn't very much help. Hope someone gives you better advice. Good luck

 

[newstrain1]

hmm not to sure about this but some of them leafes look burnt but a few other look like they have been eaten by summet i only say this as i gota pest problem n one or 2 of my leafes look like urs im sure some one could give you a better idea but just thought id share my thoughts