gonefishin- Welcome to Aquaria Central! Just be careful with the Red eye. I guess it actually depends on the species you have. One puffer that is commonly called the Red Eye puffer is also called the Twinspot and I believe sci name is T. leirus (I'm not 100% sure, will have to look up). If it is the Twinspot then I would definitely recommend removing it. They are known terrors and will kill off all fish in the tank. Mine did. And if it is leirus, then it is a strictly freshwater puff, if I remember right (might like a little salt). Anyway, hope this helps. And welcome.