I am putting together a 65 gal reef tank, I will have a sump which will be at a min 20gal cap.
I currently have a seaclone 100 protien skimmer on my tank, will this work in a sump? if not what skimmers will work in a sump?
You will need more than a seaclone to keep up with that many gall. All skimmers above are good you could try octopus skimmers. I think that they are made much better than ASM.