wow ... great greenhouse you've got there. That's a jungle. I wish I could grow my neps outside all the year but our winters aren't suitable even for the most ultra-highlanders. That would be a bit more friendly for the electricity bill. But nevertheless I already plan a big lowland terrarium for our livingroom. My wife already said yes because she wants to see me more often upstairs
Also I'll get another greenhouse which I'll put in another basement room. So my seedlings will get some more space to get bigger.
Drilling the holes and preparing the wires for your many seedling pots will keep you busy for a while
