*I will take a pic later. Just look at my album.*
I have a 2.5 gallon tank with rinsed blue (glass?) rocks and two plastic plants that are two bettas big. There is a light and filter in the tank and the temp stays around 76-82 degrees. Aurora, my betta, gets a weekly fasting and exercise. He is healthy and his fins are growing but he glass surfs at night. I will get a heater next month when it gets colder and the temps are low. He does poop (not white) and swims a lot! Does this sound good to you?