This is my new pond I have build last fall and I just opened it up about 2 weeks ago. It is about 13 ft wide and 16 ft long 40 inches deep. I estimated it is about 2500gl-2800gl At present I have to large gold fish that a friend from work gave them to me because they were too big for his aquarium and 6 feeder gold fish that I put in the pond last fall and all 6 survived the winter here in CT. I will be adding a couple more koi fish and a couple comets. and I will be planting a few water plants like water lilies horsetails and cattails.