Hey. I was wondering where all these people get their 300,400,and 500 gallon tanks from the threads I read. I have a 46gallon now and will be upgrading in a year or so and I would like to go with at least a 250gallon. I checked out Aqueon, Perfecto, Ocenaic and Marineland. I think it was Perfecto who had a 300gallon but that was it. SO where do u find these huge tanks? And if u could include a good filtration system as well, I've never dealt with a tank larger then 46g so Im only use to the small filtration systems lol. Thanks guys