I mean sure, but none of our therapists know anything about how to construct a solution where the water recycles so we don't end up paying 300 dollars a month in water while trying to get him to not fixate on running water all day long. It actually seemed like the kind of thing that HN might be good at, thumbs up for the aquarium idea which I wouldn't have thought of.
on edit: changed a no to know, was multitasking.