Thank you, I am soo glad to be here. I am just setting up my first predrilled tank and sump. I left my 125 in Florida in my son's garage. I have always had hob filters and this is new to me....really excited and scared to death. I am not sure exactly how the protein skimmer is to be set up. I have a aqua clear (pro clear) 150 sump with bioballs and protein skimmer.