some leaves thin, curled-upward, browning edges

[Baruce]

I think probably part of your issue is the rockwool and it's associated overwatering and/or ph issues.

I'm thinking it's related to the over-watering also, but I'm not sure. I wouldn't know what to do about it if that were the case... I just hope they'll recover!

And thanks for the link! :hippy: