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怎样区分野生黑鱼和家养黑鱼
更新时间: 2021-05-10 14:10:48  

1、看鱼的供氧环境:野生鱼的生存能力很强,只要密度不是很大,往往不需要人工供氧,而养殖鱼相反,生存能力差,必须要增氧泵供氧。

2、看鱼的体型:野生鱼因为生存竞争大,体型往往细长,养殖鱼因为人工喂食,基本没有生存压力,所以体态偏胖发宽。

3、观察鱼的灵敏度:同上,养殖鱼反应往往比野生鱼迟钝。

关键词: 怎样 区分 野生 黑鱼

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