I burned my seedlings right out the gate and after they recovered I had light leaks through the lid it took me a few days to figure out what was going on I had 2 layers of mylar on the top of the lid and still had slight amount of light leaks so I added towels and that solved the issue. I raised the ppm to 350 added calimagic and hydroguard to the regimen. I lost 2/3 jack herer/ 1/3 critical purple kush I replaced them with cinderella xx and Apollo xx