Hi 420. I am 8 days into my hydro grow. I'm using 2 26watt 1750 lumen 5000k cfl's on each grow. I have 2-soil grows along with the 2-hydro grows. My temps are a bit on the high end around 82-86 degrees, and my humidity has dropped to 45-48% over the last 4days. The second set of leaves on one of the hydro grows kinda curl at the tips facing slightly upward. They are green with no other signs of concern. This same grow first two sets started to yellow, which stopped after I fixed a water issue. Like I said the second set look fine except they curl a little. I have seen plenty of photos and I don't recall seeing any that look like this. I was wondering if the humidity is the issue here, and if so, why hasn't it effected the other grows? Maybe I have a slight root problem? I also don't have a fan inside the tent, but I do have an inline w/carbon filter for exhaust. They are also placed in rockwool/hydroton. Please, any help for this newbie as always would be much be appreciated. No photo's too blury for a good description. Oh, unknown strain(bagseed).