That's awesome. I really want to try my hand at growing helis, but I know my conditions aren't exactly ideal (my temps are more like 80-85 during the day with 55% humidity; 65-70 overnight with 85-90% humidity). But darn, those things are just so pretty!
Here's a silly question: did all that live sphagnum sprout over the three weeks that elapsed between the first and second shots, or did you add it?? I'm trying to sprout my own from dried LFS and so far... no luck.