I've been conditioning both my male and female Bettas for a little bit more than a month with pellets, flakes and blood worms. The female certainly looks quite plump.
Anyway, I introduced them to my spawn tank, which is just a clear plastic tub which is approximately 60L (or a little bit more). There are plenty of hiding spots and live plants and I've added Styrofoam cups since the bubble nests the male made kept popping.
When I first introduced them (after putting the female into a clear cylinder), I watched them go through the whole courtship phase. The female was pretty scared but she got through it. Now she's trying to swim underneath the bubble nest but the male will chase her away. I am 100% sure that they haven't embraced yet. The temperature is also at a constant 28 degrees (give or take one degree).
Is he simply too aggressive or are they close to mating?