filtration help

[<3fishchef]

ok i have a 12 gal aquapod with 15 lbs of lr and 24lbs of ls and in the back i have 4 chambers in the first one on the left i have a sponge, in the next one i have ceramics and carbon in the next one i had bioballs (got rid of them) and in the last one i have the heater and the pump. my question is of the two mediums which one should i replace with live rock? the sponge or the carbon and ceramics?
any input would be great thanks
MJ

 

[pclown]

I have an Aquapod 24G I left my setup alone and it is doing great!
I would say the ceramic rings, but I am not a 100% positive.