Saturday I bought what I believed to be a male and female Betta coccina, however, while the "female" is striped and has shorter fins, she's aggressive towards the male, and has blue coloration on the side.
Is she really a female, or is it a male? I'm confused to the point that I've even thought it might not be a B. coccina...
Here is a short video I made, not very clear but hopefully clear enough.
https://youtu.be/v0RTvi5kbFs