Hello, what model Aquaking do you have?I have an AquaKing filter on a 125 gallon without a sump and an AquaMaxx protein skimmer been running for 10 years.
You could technically use it. But I would ditch the stock filters and make a media rack with eggcrate. Im not sure how much room you will have inside for floss and whatever else you plan to use. But if you need more room down the line you could always upgrade later.i only ask if it’s okay to go with the aqueon because I currently have one.