Public domain photos

The image shows a close up of a purple sponge on a coral reef, surrounded by a few other rocks. The sponge is a vibrant purple color, and the coral reef is a mix of colors, including blues, greens, and yellows.

The image shows a close up of a purple sponge on a coral reef, surrounded by a few other rocks. The sponge is a vibrant purple color, and the coral reef is a mix of colors, including blues, greens, and yellows.Open in library