Ok so i want to put in a sump, but i don't know what size. I bought a used wet/dry that i was thinking about converting. Then last night steve came over and was saying that i should worry about keeping it small. He was saying i should get a 50 gallon and put it off to the side. And you won't see it cause my tank is in the wall. So the good people of ARC what the heck should i do? Go big or small?