I was reading a threat earlier and someone brought up the idea of shrimp being homed in one of those fish bowls (1 gal I think?) you get from walmart. I was wondering if this is actually an okay living space for shrimp? I believe it would be interesting as it can fit in more locations than a larger tank. Clearly I would add a spongefilter, 1 or 2 small plant, and sand as substrate. Is a heater also needed?