I had to swap my halfmoon king betta out with my halfmoon butterfly salamander betta. The king betta ate my galaxy Rasboras so had to pull him from the tank. The salamander betta is calmer and isn’t aggressive with other fish.
I’ve had the salamander butterfly betta for quite awhile. He is starting to show his age, he’ll be 2 years old this year. This is an older picture of him.