Is there such a thing as a breeding pair of bettas? From what I understand, You slowly introduce the male and female they do their thing then after you remove the female or they will fight. I may have my facts wrong.
Ummm. After this morning I would say no, The little catfish are fine, The snails are fine, the shrimp a fine, He killed one of the Platys, and was attacking the others, I had to put 1 down because of the damage he caused, This is 1 agro Betta.
Mr Yobbo found that if he stares hard at the glass in the back of the tank he can see another betta, And its time to flare and fight. My solution was to line the inside of the tank with those 3d Styrofoam backgrounds.