Roy, Morden asked:
Do fish always swim anticlockwise in a round bowl? I’ve watched my sister’s fish and they always go anticlockwise. When they’re in an oblong tank they go in every single direction.
Helen - I’ve never heard about fish going in one single direction in a fish tank so I think we’re going to need some more data to back that up. Fish can navigate, they do know where they’re going. Why they’d swim in only one direction, I have no idea. I can imagine they’d keep going round and round one but they can’t in the square one because there’s corners.
Chris - It’s also a myth that they’d lose their memory in 5 seconds, isn’t it?
Helen - Absolutely, fish are much cleverer. They have much longer memories than 7 seconds. Anyone else got any fish in their tanks, want to let us know what they’re doing?