When you get it, take all the foam out. Fill 2 or 3 of the 4 media baskets with LR rubble (small pieces of LR) . Leave 1 or 2 media baskets open. In the future if you need to run carbon, GFO, or anything else you can pop the top open and use the empty media baskets for that.
With the foam out and using LR rubble there is very little maintenance. Basically a 1 gallon sump with a pump included
With no foam media, the 'nitrate factory' phrase you'll hear talked about is greatly reduced.