Oh, yes I believe Ive seen that before.
If you aren't ready I don't think you should force your fish to do it.
I'm going to wait atleast a year before i even attempt to breed.
So, I will read read read until then, and become friends with Mr. Vampire and Vikki so I can gain the most knowledge possible. And eventually when im ready maybe breed.
My reason, we need more beautiful bettas in Canada.
I won't judge you however 5 Green because I am still unfamiliar with breeding bettas and don't know that much yet. However it seems to me like you dont have an appropriate grow out tank.