I was looking at the Hawkeye 5 gallon tank kit and was wondering if I could get some opinions about it for a Betta. I'm thinking about getting a Betta for my classroom. It is plastic which I was wondering if glass wouldn't be better. Also, it comes with a pump. Would I need to use a pump for 5 gallon tank or could I still just do water changes? If I need to use a pump is the pump that comes with it too strong? Thanks for any help..