Help with Filtration Setup

[Fenix]

Hi

So I had a question which would be the best way to setup my filtration system?
I have a 24 Gallon Nano Tank. So my question is what should I be putting in each chamber?

The items I need are
Heater, Skimmer, Filtration Sponge, Carbon Media, Live Rocks

Is there anything I am forgetting or I dont need?

Also can anyone recommend a skimmer that can fit in a 24 gallon nano?



I was thinking the following

Chamber 1: Empty
Chamber 2: Skimmer and Live rocks, Heater
Chamber 3: Filtration Sponges + Carbon Media


Thanks

Let me know what you have configured.