Hey sorry Weedhound, I just found this thread. I have noticed that problem in mine where the tops leaves start to curl down and sometimes the edge of the leaves get crispy. It's also usually accompanied by a bunch of yellowing which you don't have so I dunno.

Unfortunately my current grow is starting to take that week 4 turn downhill that the first two did. I don't know what the deal is because my bins drain all the way and my roots are massive compared to last time, but there's a lot of yellowing going on. I am also starting to see the crispiness of the newer leaves around the cola and I'm not sure what that is about. I post a thread called "Third Grow" in the grow logs. I'm currently at day 22. I am going to change the res again tomorrow because its getting slimy. I also think the fungus gnats are back. The problems just don't stop for me! :wtf: