I'm new here and have a question or two about my betta and his tank. Currently he lives alone ina 2.5 gallon tank with two fake plants and a heater. I never had issues with algae before but ever since getting the second plant it accumulates on it. The purple plant in this picture is the exact plant, though mine is green: http/www.petsmart.com/product/index.jsp?productId=10939501&lmdn=Fish+Decor&f=PAD%2FpsNotAvailInUS%2FNo . It's the only new item in the tank and was wondering if it could be an issue or if maybe I needed to get an algae eater of some sort? I know they don't live in that small of a tank and I'd be willing to upgrade to a 5 gallon if need be. Just curious on everyone's thoughts. I can't have shrimp/snails/frogs or anything like that as I live in a college dorm, but I wanted to look at options for either new plants/deco items or new fish?