I am posting a reply to my own post so someone else might find the information usefull.
My burnt/yellow leafs were caused by several little problems and no one solution was the answer. Here is what I did wrong.

*Spraying the leafs with water with the lights to close.
*ferterlizing by the lable directions (dutchmaster gold) this is way to strong for younger plants.
co2 bottle ran out while I was gone and 85 is to hot without and even worse if the plant is sickly.

To correct the yellowing leafs I flushed heavly. I added CalMag to a 1/4 strength nute solution and add 2.5 cups of hydrogen peroxide. I also have started using 2 tbsp of hydrogen peroxide pr/qt of ph balanced water as a leaf spray. Seems it has many uses and benifits for plants. I included a pic of one of my plants 4 days after I started damage control. It shows one of the leafs that where burnt and how well the plant is doing since.
Hydrogen Peroxide: practical, environmentally friendly & anti-bacterial

I hope this info is usefull as my lesson was hard learned.