What Killer said about the foliar feeding. It can screw them up bad. The light with no fan can be a real burn.

You need a fan badly. Get some air moving too.

Phototrons are some strange animals. I worked with one for almost 20 years just like that one. Till they took it. LOL I see you or your Dad came to the conclusion you need more like. That's good.

I would suggest either going with phototrons Sphagnum or go Coco fiber. The methods are similar. Once started I have had succes only with GH 3 part. 1-1-1 mix 5ml per gallon. Feed that once and R/O water twice. Anything but R/O or distilled ends up killing them. Remember there is no flushing out here , once they start to go it's too late.

They lights a good Idea but I would pop the top off the tron and put the light over top. Kind of lay the plants out the sides a little to open up the middle. You could see some good results. It's all about learning your system.

Then again I have been known to be wrong.