Sorry BAR, I didn't see this question until now. Been busy busy today.That only makes sense to me AJ. It didn't even cross my mind. Using my noodle I would almost be willing to say fan leafs are irrelevant in hydro. I'll try to do a little research & get back to you on that one.
Maybe some of the more experienced members who have a history in both Hydro/Soil alike would like to expand on this conversation.
Lady DIY, you're good at drawing some of the right people to the right questions, work your magic!