Quote Originally Posted by stinkyattic
the curling-over of seedlings' leaves like you've shown isn't something to worry about if they remain stiff and turgid, and show no discoloration. If they are limp or discolored, you're doing something wrong. Remember, you have just added reflectivity to the walls, so they are getting light from all directions- plants orient themselves to the light. So far, that seedling looks a bit stretched but otherwise healthy.
Yeah, they got stretched in the beginning before I figured out the the plants had to be so close to the light. I did think about the reflective thing, but I didn't expect it to be so reflective that the plants would change direction.