So, I went in today to turn the lights on in the tanks...to my dismay, my biggest and Fav. Angel was dead. Her/His tail was completely gone, bottom fins were too along with her eyes!!! I feel so bad for her, I'm thinking I am going to move my other Angel back into the female betta tank. I have had not problems up till now with them in the 55g and I NEVER saw any type of aggression toward them from my other fish, so I have no idea who did it, if it was more then one, or if she just died and they being fish ate her/him.