Just figuring out how to reply lol. So, I think I have a couple pictures attached to this thread of what I'm working with. I think my sump has a fuge compartment, and I know how the flow goes. I don't know if a should replace the little bio cubes, and I'm not sure which compartment they should be in. I don't know where my skimmer goes in the chain, and I have a canister filter that I'm also not sure where it should go. The guy I bought it off had it separate from the sump, as in not in the chain from the overflow box.Hi and welcome to Reef2Reef!
So, I tried to cover what's going on here. If you need more pictures, or a better explanation just let me know. Thanks for any help you have, and you're welcome for any laughs I may have provided