Hello. I am new here. I’ve looked all over the site but did not find an answer to my question. I am going to setup a 65 gal tall reef tank and need advice on filtration equipment. My cabinets opening is 33Lx13Wx18H. Thinking about getting the Eshopps R-100 reef sump as it fits well within my cabinet. Problem I’m having is finding a good protein skimmer that’s under 18 inches tall. Any suggestions on setting up a new reef tank would be greatly appreciated. Like what equipment might a need etc. I have an extra fx4 canister filter. But I understand a sump is much better for a reef tank?? I also like the idea of a refugium in the sump. Is that a good thing to have? I do have a lot of experience at keeping freshwater fish but have never owned a saltwater aquarium. Thank you in advance for any advice or wisdom you can give me.