So I know bloods like small enclosures, but my blood seems like he will be out growing the small tub I have him in. at what size should i upgrade him from 22.44" Deep x 7.36" Wide x 4.25" Tall to 22.44" Deep x 14.76" Wide x 4.25" Tall He is currently about 22 inches long. I was thinking of switching him when he hits 30 inches. What do you guys think?