additional

I have never had a cichlid tank and just bought a 75 gallon to get things started. I would like to go overstocked with primarily mbunas for appearance and to cut aggression. I have a used Rena XP2 that is used (used to be for a sale tank but assume I can clean out well with hot water to reuse)...

I would like to add a canister filter. The filter right now is a emperor 400, with added bioballs. Im looking for something rated for at least a 75, and under $100. It would be preferred if it came with media. Any suggestions?