Aquarium Smells! How to get rid of smell?

[Fishjunkiejimmy]

Yea it’s not smelling the whole room I think roommate is just sensitive nose I’m right on top of water changes two 20% a week cause there is babies in there and had just cleaned the filter but yea maybe I’ll add more carbon or we’ll actually how often should I put new carbon in my filter the stuff I have in now is about 3 months old