It looks like it is diycages selling off its "b" grade cages they got from a newsupplier on ebay. They received a shipment where the cage does not line up perfect and it has a stronger smell than they would like. Still good cages, I got it off there website directly. This is why there is a long...
I too have an 18x18x24 exo Terra. I have no substrate and soak up the bottom daily. I have yet to come up with a good drainage system. Please share if you do.