Beginner Gardening: `Leaf and tips on cucumbers seedlings are dry , 3 by Deadhand

Deadhand wrote:
Thank you all for the welcome and comments. I think a little water splash on leaves and a bit to close to lights is our answer. The tomato plant had a bit of leaf damage but is doing well now. I built a fan for my grow box that will help for any mold. Used a squirrel type fan from a old microwave oven. This is my first for starting from seed and looking forward to seeing my plants grow. The plants I am growing now are experiments. It would be a bit early for zone 7. My pics are the grow box, fan and timer controls.