I am going to set up a vivarium for some poison darts. Not sure what kind i want but i do know i would like to have a group, maybie a few different colors would be nice. I was looking at a 75gal-150gal tank setup, not sure what yet because a prices. I am going to have a terra-lite base substrate layer with a coco-bedding/fern fiber upper layer for plants with a small pond like thing to one side about a ft long. I have always read about the frogs being aggresive over territory, will this size setup help? I guess i just like things big but would like to have a dozen frogs or so when all set up but planning on getting 2 to start in about a month if i can get everything ready by then. Any suggestions on this size tank or should i just set up like any other size tank?