Baby Angels, 100's of them. If you look very carefully at the mass of tan fuzzy stuff stuck on the plant, you can see itty bitty wiggley things. Those are the babies. They stick to the plant for a few days while they absorb their egg yoke. The white angel is the mommy and the black one is the daddy. They protect the babies, chase off any fish foolish enough to come close, and catch and spit any that fall off the plant back where they belong.