Now here's a great looking plan!
This dude on the frog board has been using some wood from Lowes called PVC Trim Board which is boards made entirely from PVC plastic. Then he seals the interior seams with with silicone and then installs a pond liner for sealing the bottom. He even puts a drain bulkhead in the bottom (I would not try that). But this might answer my question of how to make a large custom sealed vivarium/grow chamber/etc without using all glass and also not messing with "non-toxic" but still toxic (?) epoxies and sealers and such. Here's links to his 3 projects using the stuff:
INDOOR PVC TRIM BOARD GREENHOUSE (huge post)
PVC TRIM BOARD VIVARIUM
3UP PVC TRIMBOARD FROG DISPLAY
Happy reading DIYers!
---------- Post added at 02:11 AM ---------- Previous post was at 12:59 AM ----------
No Lowes in MN carries it!
However there is a building supplier who does have it, hopefully they'll do retail.
I found the manufacturers site, they even sell the stuff in 4 x 8 sheets! Oh yeah!