I am looking to upgrade my filtration for my 40 gallon freshwater tank. I currently have a penguin bio wheel hanging filter. I would like to buy a canister filter that is easy to prime without dumping all the water everywhere. I would also like not to spend a ridiculous amount for a tank that my kids insist on putting sharks and other beautiful decor throughout. I keep a few to many fish in the tank by choice and vacuum the tank weekly as well as wipe it down. The objective is to spend less money on the replaceable filters while keeping a crystal clear tank.