Hello! I've got a male McCosker's Flasher and a Firefish in a 20 long tank. I love them both to death and they have got along perfectly fine for the longest time. Occasionally during feeding the flasher would flash a little and show off, but the Firefish seemed unperturbed... until now. The flasher has grown much more aggressive and I've noticed some tearing on the firefish's fins. The flasher basically does everything he can to keep the firefish confined to his cave. I'm worried this aggression will mean one of the two has to go, but I'd really love to keep them both. As a side note, I also have a Coral Banded Shrimp. Both fish keep a fair distance away from him as he can be a little mean if they stray too close. Would removing him potentially free up space for the other two to be happier? Any advice is appreciated!