Originally Posted by castewalpha

All that i am good at so far is nearly killing my plants. Just when i thought that they were doing good, the leaf tips began to wilt and the edges of the leaves are a lighter green. The plants are under 6 40watt t12 tubes at (6500k). The PH of the soil is right on 7 and i am using miracle grow potting soil and perlite. The plants are about 30 days old. I flushed the soil of the 2 larger ones yesturday and raised the lights.(the lights were only about an inch away but shouldn't matter with floro's?) They are under 24 hour light which i am about to change to 18/6.
If I haven't given enough info. let me know. I'm not concerned with the tiny one because i don't think that there is much hope for it.
Thanks
C