Most people thinking about buying their first aquarium make the mistake of buying small tanks. Figuring if they don’t like it or mess up it won’t be a big deal. Well in some cases that’s true. If you are buying for a child for instance. If the tank is for yourself, I suggest buying big. You can find large aquariums for sale at great prices and larger tanks are easier to set-up and maintain then the smaller tanks. They also give you the freedom to buy a few or large amount of fish without having to worry about whether you are over crowding the tank.