I have no idea what's causing this but most of my 3 week old seedlings are yellowing, and some leaves are turning black at the tips and crumbling. It's not the soil because I've used it before, and I'm also using 2 different kinds of soil and it's happening in all the pots. However, 1 plant is doing great so that rules out the light being too close. It's a 600watt bulb and out of desperation I've moved it about 2.5 to 3 feet from the plants. I have no idea what is causing this. Any ideas?
tadaa Reviewed by tadaa on . Please help problem with seedlings I have no idea what's causing this but most of my 3 week old seedlings are yellowing, and some leaves are turning black at the tips and crumbling. It's not the soil because I've used it before, and I'm also using 2 different kinds of soil and it's happening in all the pots. However, 1 plant is doing great so that rules out the light being too close. It's a 600watt bulb and out of desperation I've moved it about 2.5 to 3 feet from the plants. I have no idea what is causing this. Any ideas? Rating: 5