So i have a blood parrot and a puffer (i was told they'd be ok together) but lately during feeding time, the puffer gets aggressive with the blood parrot and wont leave him alone. I noticed right now that one of them threw up. i kinda put a lot of food in there this time around, but i'm not sure if that is a sign of some sort from one of the fish. should i get rid of the puffeR?