I know the waterproof gopro webcam thing comes with housing, but it's tested to 100 feet so it would probably work fine.
If you want to get really technical you could call one of the public aquariums that have these in their tanks. A lot of them have webcams you can view online at all times.
If you want to get really technical you could call one of the public aquariums that have these in their tanks. A lot of them have webcams you can view online at all times.