I'd go 3'x2' or 4'x2', a foot of width would be extremely cramped for an adult.
The way OP listed the dimensions I believe would mean 18" of floor space and 12" of height. Unless there's confusion somewhere...which now that I'm thinking about it, I think there is. 12" of height seems silly for a tank...
OP, if this is the case I was mistaken in my previous reply. Typically the measurements are LxWxH...can you confirm?
Last edited by Craiga 01453; 04-20-2018 at 05:06 AM.