Of late, my Betta persephone males have been rather territorial. Their new tank while only 4L smaller than their previous one, is unfortunately around 30cm shorter. I have tried to counter this by providing plenty of hiding spaces, but of course being bettas, the males still seek each other out.
Today I added some moss from my unimaculata tank to help break up the tank into several different 'territories' and of course this just made everyone squabble more.
Hailing from Melbourne, Australia, I currently keep and breed a number of species from the coccina complex.