Boomy
Well-Known Member
i know it's a question your all sick of hearing. But I have looked everywhere and came to a conclusion. Just wanted to get some opinions. My seedlings are 10 days old. I had them under cfls until 2 days ago. I have them 32" below a 1000w MH that is sealed and vented. Temp was at 29C at peak and down to 20C at night. Have a fan blowing on them lightly. Humidity doesn't want to go much higher than 25% but stays around 23%. Soil is 50% pro mix, 25 perlite, 25 mushroom and worm castings. I noticed the markings on leaves the day before I switched to MH light but the curling just started. I checked the water and it was almost an 8ph, but my run off is still about 6.4. I'm going to go buy ph up and down tomorrow to keep the water at 6.5. Anyways my conclusion is heat stress or too much light intensity. I have a dimmable ballast that I just turned down to 750w. Any one have other suggestions or ideas? Thanks for reading another post about seedlings lol