Summary: days without any fish to let any unwanted chemicals evaporate out I landscaped around the pond with some large natural looking slabs from Home Depot Then I went shopping for goldfish I have had my share of indoor aquariums through the years so I know about algae If you build an outdoor goldfish pond DO expect algae You can decide to treat it aggressively with
Image Dimensions: 480 x 399
Image originally found here.