I just read it, thank you. Looks like I will start them in a divided 55 gallon. I'm gunna fed them a big variety of food cuz I want them to grow fast and large. Other than obvious size differences, what tank mates are good with arrows? I want to stick with an amazon theme. I'm wanting a tigrinus cat, a variety of knife fish or long finned oscars. Will oscars be to aggressive for adult arrows?