frogs fighting

[Baloo]

I have two bombina, a large light green male named Kermit and a darker smaller male named Scooter. Recently I bought a light brown European male which I named Copper and a smaller female.
Copper is roughly the same size as Scooter but he tackles on top of him and sometimes pushes him under water doing this.

Is there much of a way to get around this besides separation? Anything I can put in there or do?

[Bombina Bob]

Hello Robbie,you could possibly have the toads in a terrestrial setup with a large water bowl, this will give scooter a break from copper, they are fighting due to dominance or copper has mistaken scooter for a female. If scooter is still eating and looks healthy, he should be ok, but otherwise... try the terrestrial setup

[Baloo]

Thanks. Now Kermit, the large Asian male is doing this sometimes to Copper. And he also starting doing this to Copper. (Copper seems to be everyone's b****). He refuses to let go of him once he has him and they go all around the pool. I already spent $200 on a tank setup for them. They only made one attempt on the female (Deedee).