Hello all! I am brainstorming ways in which to keep the duck pond as clean as possible. I am wondering if fish such as plecostomus will work to help clean it? The pond will not have a filter or pump, because it is 125 gallons and will only have two ducks in it and will be emptied once or twice weekly. Also, would snails work. I would provide shelter for both of these animals from the ducks. Any I put is appreciated!