they look like nutrient burn. Does it start fom the tips of the leaves and get worse ? If it's nutes you can't flush with clean water that only releases more nutes. Sorry man they don't look good.
LOC NAR1958 Reviewed by LOC NAR1958 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