I had the same problem on one plant but I don't know exactly what it was from
I corrected it after I
1. raised humidity to 45%
2. flushed
3. aerated the soil.
so I could have had too low humidity, overwatered, or overnuted.
hope this helps
__________________ :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: The Edge... there is no honest way to explain it
because the only people who really know where it is
are the ones who have gone over. Hunter S. Thompson |