The water level in the vase is a bit lower then the picture gives away, so he might have some trouble jumping out, but I will definitely keep an eye on him regardless. I will also look into the divider thingy next time I'm at my lfs. Thanks natalie! Also, my Alma Mater had a pretty extensive marine biology department, so I might be able to find the betta studies through them. If I find them you'll be the first to know :).