That damage is mostly heat/light damage but I think you may have a little somethingelse going on there... Okay, I see a few things- the curling leaves, the random round necrotic dots, the burned tips, and then the regular striping on a few of the older leaves.
Flush out your plants really well and feed them with a complete fert that has micronutrients- if you have any way to check pH, make sure it is in range. It looks like you have a salt problem resulting in a lockout, that's what I get from the burned tips and stripes.
All the other shit yeah get your temps down but really you need some serious ventilation as well, and raise your lights! Also, stop watering with the lights on or be more careful not to splash water on the leaves. The polka dots are burns from water droplets sitting on the leaves under the HID.

What are you doing for ventilation atm? That is contributing big time I think.