All aboard the Northern Express

Sadly, no great improvement with the Northern Express this week. It's still growing, but the leaf curl will just not get any better. Starting to wonder if I should pull the plug on her? I'm not gonna give up yet, but I am starting to accept the fact it might not pull through. I still don't really understand why it just happened to this one and not the others... maybe just a sensitive plant? I put a pic up of how they are in my tent... they are all treated the same, from day 1... same water, same lights, same environment. I should have referred to this run as The Good, the Bad and the Ugly lol... Two were good, one not so bad and one fugly! Oh well, live and learn.