I have a small tank (1.5 gallons) that I'm planning on putting a Betta in. Would there be a problem with putting a heater in? is it too small for one? I bought a small 50 watt heater that says up to 10 gallons on it... I would get a bigger tank but we already have this one and my parents wont let me get another one.
Also... can I put a koosh ball in the tank? If you dont know what one is heres a picture: http://www.newitts.com/images/products/200x200/pe18.jpg
I think it would look cool and the betta could play with it. there isnt anything toxic about rubber is there? I don't think the betta would nibble on it...