Inigma, Vader looks pretty sweet! what species is he? Also, how do you like your black sand, or how does Vader like it? I wouldn't think that he could burrow as effectively in that vs a finer sand. I am going to set up a 12g nano for a mantis, and was thinking about using black substrate, so I am curious to see how it is working for you... is it known as Black Beauty?
Jason