I think a lot of people hear the "tiny spaces" myth, and it is true, but there are three massive problems.
- Not all betta habitats are tiny spaces; some are found in areas as large as longs and rice paddies.
- The ones that are found in tiny ponds are connected to a massive ecosystem, usually as part of a river. Shallow, sludgy and full of decaying organic matter is not bad. You can't replicate that in a small tank.
- The ones that are found in spaces like hoofprints have been washed there and then stranded when flood water receded. They weren't born there and they certainly don't thrive there - why else would they use those amazing jumping abilities to try and get away?
When people tell their employees the mud puddle story, they ought to give them all the details, not just bits of it.