Appearance not matter for...thing which giving me trouble is that if i put 2 internal canister filter i guess water current will be unstable and it will be difficult for the os to swim.If he's like me that appearance means nothing for 99% of your tanks. In my 75 I have 2 cascade 1,000 on the front of the tank that are keeping the filters cycled for 2 new tanks I'm waiting to set up.