waterfall fountain with koi fish in a mossy stone pond

aesthetic algae aquatic aquaticlife architecture basin beauty calm cascade decorative design environment feature fish fishhabitat fishpond flow fountain garden gardenfeature green habitat koi koipond landscaping moss mossywalls naturalbeauty nature ornamental outdoor outdoordecor peaceful pond pool reflection relaxation serene splash stone stonestructure stream tranquil trickle undefined water waterfall waterfeature watergarden zen