Mysterious breeding habits of aquarium fish vex experts

A worker shows baby clownfish at a breeding facility in Buleleng, Bali, Indonesia, Wednesday, April 13, 2022. Experts around the world are tinkering over water temperature, futzing with lights and trying different mixes of microscopic food particles in hopes of happening upon the particular and peculiar set of conditions that will inspire ornamental fish to breed. (AP Photo/Tatan Syuflana)

Mysterious breeding habits of aquarium fish vex experts