yes theres no need for it to be so large if its for the dogs only. I am thinking about making a very large one though. As I would like to raise fish in it as well as crawfish for eating.

something to consider if you decide to make this. I would make the edges of the pond in levels, kind of like large flat steps before it goes straight to the deepend. This way its easy for the dogs to get out. If theres just a flat area and then a deep drop off a dog could drown.