I recently purchased two small parrot fish, blueberry and strawberry named because of their colors. We have an over populated 30 gallon guppies tank we dropped them into. They are hiding and eating, and seem to be happy. My question arose when I have noticed the pink parrot is aggressive towards the blue parrot. I have already fallen in love with these adorable additions. I do not want to lose one, if I can avoid this.We have two other tanks consisting of an overpopulated striped convicts, and the other assorted goldfish, including one beautiful yellow and black cichlid.