There is an entire subset of #aquarium enthusiasts who care more about behavior than the colors or shape.

To these #aquarists #guppies are meh. Heck, even some veteran #guppy folks will attests that guppies don't offer much in terms of interesting behavior.

But over time, I have seen a lot of surprising behavior. i.e. A #betta biting a male guppy followed by an entire swarm of angry black-eyed guppies collectively attacking said betta. Or one of my females who have learned to "unlock" pellets.