Who's fighting who?

[nfritz565]

I have a royal gramma, purple psuedo, and a yellow angel in a 32 biocube. Water parameters are perfect. 1st my watchmen hobie got killed. Then my emerald crab murdered. Gramma is showing defense maneuvers when purple is near him. I have seen yellow nip at my snails(snails are 1 by 1 are not moving anymore). And purple has nips out of his tail fin. I cant figure out who is best to remove. I dont have corals yet but plan to add some soon but cant with a new dead fish every morning

 

[EmdeReef]

Welcome to R2R!

Royal grammas are generally peaceful so I would rule it out. Purple dottybacks are aggressive ime and angels can certainly be aggressive. When you say yellow angel do you mean lemon peel angel or? Perhaps post a pic.

Is there a chance you may have some other pest in your tank? Have you observed aggression between the fish especially when you feed them?

 

[davocean]

Dotty would be my first suspect