By Evan Ackerman
Why don’t I keep fish as pets? It’s simple: lack of interactivity. Sure, they’re pretty or whatever, but you just sprinkle food at them occasionally and they go about their business while you go about yours. This fish tank however brings you and the fish together, letting you feed the fish much more directly. The little cups on the sides of the tank in the picture are connected to the tank and open to the air, which allows the fish to swim into the cups to be hand fed (and petted or nuzzled if that’s your thing). The tank is sealed at the top, creating a vacuum which prevents the water from pouring out. It’s a custom tank, but it should be a fairly straightforward DIY project if you’re fish-obsessed, or just really really lonely. Lots more pics here.