I'm going to run a 55 gallon sump. Going to be mostly a wet sump for now as this is the first time I have ventured away from canisters, but plan on tweaking it as I go. I am toying with the idea of adding a trickle system once I get the basics up and running. I have cycled media and driftwood as well as two cycled filters rated for 100g+ ready to go on in addition until the new tank is self sustaining.