I am trying to decide if I want to try a dual internal filter or go the long route and do a diy overflow hob to a 20gal sump. I have never done a saltwater tank before. I do not plan on any coral just maybe 3 or 4 fish. The filter I was looking at is the sicce shark. I had been researching for months but right now I am not sure if a sump is needed yet. I know I can always do one later. When I am ready