I have a question about what I will need for a 125 gallon sump I'm setting up on a 315 gallon fowlr tank, will it work to just have a really large skimmer in the sump for removing the waste and then live rock in the tank for my bio filtration? Would that be sufficient or are there other things I should build into the system? Ive never set up a sump before and have no experience with a skimmer just have always used canister filters before. Any advice much appreciated