Mysterious breeding habits of aquarium fish vex experts

Mysterious breeding habits of aquarium fish vex experts

By Associated Press

Source: nypost

10/20/2022

Credit: AP Photo/Tatan Syuflana

It took a broken air conditioner for Tom Bowling to figure out — after nearly eight months of failure — how to breed the coveted pink-yellow tropical fish known as blotched anthias.

Bowling, an ornamental fish breeder based in Palau, had kept the fish in cool water, trying to replicate the temperatures the deep-water creatures are usually found in. But when the air conditioner broke the water temperature rose by a few degrees overnight — with surprising results. “They started spawning — they went crazy, laying eggs everywhere,” said Bowling.

Experts around the world tinker over water temperature, futz with lights, and try various mixes of microscopic food particles in hopes of happening upon the particular and peculiar set of conditions that will inspire ornamental fish to breed. Experts hope to steer the aquarium fish trade away from wild-caught fish, which are often caught with poisons that can hurt coral ecosystems.

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