Garden Pond Ideas: Just Add Fish. I have written another article that deals exclusively with adding backyard pond fish, but here is a brief introduction in this garden pond ideas guide. When backyard pond fish are healthy, they will be active and lively and display an erect dorsal fin (the one on the back). Garden Pond Ideas | Country Living at Please note: You are currently browsing img 18 garden pond designs, ideas design trends premium that is 730x487px in size. This image is listed in garden pond decoration ideas category. Garden Pond Ideas Country Living at, 730x487 in 184.73 KB.