Amazon puffer groups
Hello all, I currently have three Amazon's in a 75 gallon planted tank. (Adding more plants every week). They're still small, about an inch long. I only have three because they have been nearly impossible for me to track down. I recently stumbled upon a bunch at one of my local fish stores but they're currently in quarantine (no one could tell me why but they had essentially no tail. They were incredibly active so thats my only assumption). I know they do well in groups of 6 or more. Could anyone tell me what kind of behavior I could expect with a larger group? The three I have now swim together every now and again but have seemed to already established their own "territories" in the tank (left, middle, and right). They're not aggressive to each other or the other fish for the most part (Corydoras have been nipped a few times and they'll be moving to a new tank once it's cycled).