I am just getting my 180 setup and wanted to make sure i was getting it close to setup correctly. I just finished the plumbing. I have my sump setup and need to make sure there is nothing else I am missing. I have the return draining into my sump, where the protein skimmer, heaters reside, then its pumped from there via my little giant into my UV Steryl that will only come on for a few hours a week then force its way back into my tank. I have attached pictures of my setup of the sump. You will notice that there is one (1) plexiglass divider the only reason that is there is to prevent a whirlpool effect and mount the heater too. Do i need to put some sand or divide this sump out more? Or will this do it for me? Im lost on most of the filtration setups on these, but understand the sand and live rock in the tank will take care of most of this for me. My total goal is to have 2" of ultrapink argranite with 100 pds of live rock to start, then move over my other 100 pds of rock from my existing 55gln. I want to get this done right, I am not in a hurry. I plan on letting the rock sit in there for atleast a month before i add anything to it to make sure it cycled. Please let me know your thoughts.