Moorish Idol Fish Family Glow in the Dark Pool MosaicCreate an underwater glow in the dark seascape in your pool! This group includes (1) 13 x 12, (1) 17 x 15, and (1) 20 x 19 Glow in the Dark Moorish Idol Fish. Glow in the Dark Mosaics are innovative, hand made works of art that can be installed within various surfaces. By day, they provide a colorful contrast to the surface they are installed in and, by night, glow in the dark to seem as though they are floating. Each mosaic is: Individually hand made