What do you mean " The soil is new and should have enough nutrients."

Are you using some type of pellets to feed them?

Different strains have different growing requirements. Some like strong nutrients and some like weak nutrients. Each cross and strain is a little different from the next one.
Zandor Reviewed by Zandor on . PLANTS DYING AFTER 3 WEEKS!!! I'm in serious trouble. As soon as my plants came up from the dirt they've started dying. The lower fan leaves develop brown spots, then turn yellow and finally wither and die. And so it goes. I'm growing AK47 in 2 parts ordinary flower soil 1 part perlite and 1 part vermiculite. They're under a mixture of warm white and cool white fluoros and the temperature is a steady 22 degrees celsius. I can't figure it out. The soil is new and should have enough nutrients. The water is the same as Rating: 5