That's crazy! I guess they do get a little bit of light in the morning when it starts to get light out, other then that I can't say that they get any at night...hmmm. As far as temps, I can't say that they go over 80, it's only 6 40 watt floros on them now.
Scarring from old thrip damage? sorry but I'm not sure what that is!
but I will get a ph meter today and see what's up with that, I may be too late though. Some of them are pretty bad, will they still finish if I left them?
That's a first with the K def, havn't heard that one yet...