Aloha ReefdUp,
I was thinking of you when I posted that.
You used to live there, right? Are there any others? I would love to get your opinions regarding each of them.
Of course my ultimate purpose in visiting these ground level greenhouses is to figure out how it can be done, hopefully better, in a subsurface greenhouse.
Mark
Here is one of the best pics that forum member gregudolph sent to me from his visit to Reef Systems.