Troubleshooting Form

Fill that out as best as you can, it'll give people a better idea what might be causing the problem. Next time around, you might want to consider lightening up the soil with some perlite. If that soil is prefertilized, it might simply be too 'hot' for your seedlings. Seedlings generally don't need fertilizer until the fourth week of growth, or longer sometimes if the soil is already rich in nutrients.