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Freshwater nucleated pearl culture management techniques and is it more expensive than seawater pearls?
1 Selection of pearl culture water body The pearl culture water body should be at least 2000 sq m, with slight water flow, and a water depth of more than 2 m. If the water is too shallow, the pearl mussels are easily affected by toxic substances such as hydrogen sulfide, ammonia and...
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Why is the yellow croaker so expensive? Mainly for these reasons
Why is the yellow croaker so expensive?
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What is the reason the golden coin turtle is so expensive?
Why is the golden coin turtle so expensive?