Mysterious breeding habits of aquarium fish vex experts


              A worker walks past tanks at an aquarium fish breeding facility in Buleleng, Bali, Indonesia, Wednesday, April 13, 2022. (AP Photo/Tatan Syuflana)
            
              Naso tang fish for sale swim inside a display aquarium at a market in Jakarta, Indonesia, Thursday, Oct. 13, 2022. (AP Photo/Tatan Syuflana)
            
              A worker sorts fish at a breeding facility in Buleleng, Bali, Indonesia, Wednesday, April 13, 2022. (AP Photo/Tatan Syuflana)
            
              A worker scoops up baby clownfish at a breeding facility in Buleleng, Bali, Indonesia, Wednesday, April 13, 2022. (AP Photo/Tatan Syuflana)
            
              A clown fish for sale swims inside a display aquarium at a market in Jakarta, Indonesia, Thursday, Oct. 13, 2022. (AP Photo/Tatan Syuflana)
            
              A salt water aquarium fish vendor wait for customers at a market in Jakarta, Indonesia, Thursday, Oct. 13, 2022. (AP Photo/Tatan Syuflana)
            
              A worker sorts fish at a breeding facility in Buleleng, Bali, Indonesia, Wednesday, April 13, 2022. Captive bred fish cost more, and experts in the fish industry recognize that it will take time to convince consumers should pay more for them. (AP Photo/Tatan Syuflana)
            
              Blue tangs swim inside a tank at a breeding facility in Buleleng, Bali, Indonesia, Wednesday, April 13, 2022. Breeders concede that it's unlikely all aquarium fish will be raised in captivity because some are just too difficult, while others are so abundant in nature. (AP Photo/Tatan Syuflana)
            
              Fish breeder Wen-Ping Su feeds fish at a breeding facility in Buleleng, Bali, Indonesia, Wednesday, April 13, 2022. Su says he has 10 different keys to success that he's been developing for nearly two decades. Those keys have enabled him to breed fish that no one else has, including striped regal angelfish and frilly black-bodied, orange-rimmed pinnatus batfish. (AP Photo/Tatan Syuflana)
            
              Clarion angelfish swim inside a tank at a breeding facility in Buleleng, Bali, Indonesia, Wednesday, April 13, 2022. (AP Photo/Tatan Syuflana)
            
              Workers sort fish inside a breeding tank in Buleleng, Bali, Indonesia, Wednesday, April 13, 2022. Only about 4% of saltwater aquarium fish can be bred in captivity, largely because many have elaborate reproductive cycles and delicate early life stages that require sometimes mysterious conditions that scientists and breeders struggle to reproduce. (AP Photo/Tatan Syuflana)
            
              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