The inside screen has two areas that need plants. They will be in pots, as I will be taking them with me when I sell. Could you please suggest appropriate plants for this area? Also, I have a bed 12 feet long and 3-4 feet wide. It receives full sun in the morning. I was told that Joseph's Coat would work there.
Plants Inside Screen of Pool
Joseph’s coat, aka Alternanthera ficoidea should do well in the bed you mention.
This article should help answer some questions about aquatic plants.: https://www.gardeningknowhow.com/ornamental/water-plants/wgen/oxygenating-pond-plants.htm