Thanks, I had no idea what size pump to get but that's what the store recomended. It's 1150 gph I think. The stone I got from a nearby stream. I guess I could have used roundstone for the fall, I just didn't think of it, but I'm not done with it so I may change it. My ducks I had to kick out of the pond because they started eating the moss off the stones. I wouldn't let them in it anyway because they would have it all fouled up in no time. It's about 10'x13'