Yeah 20L is fine for awhile but he is in that now and has zero extra room. I am building these cages myself, so I was thinking somewhere in the 3-4ft range for length, 2 ft wide and 18 in. high.
a 3' x 2' x 12" cage would be a good size, they don't really need much height at all, and would be fine for him for the rest of his life. What are you building the cage out of?
~Adam~
BPs: 3.9 Normals, 1.0 Spider, 1.1 Pastels, 0.1 100% Het Hypo, 1.0 Cinnamon, 0.1 Pinstripe, 0.1 Albino 1.0 Bumblebee .
Bloods: 0.1 Marter line red, 1.0 Het T+ albino red.
Colubrids:1.1 Western Hogs, 0.0.1 Tri-Color Hognose, 1.0 Albino Cal King,