热带鱼在北方的人工养殖

1.品种的选择 北方的水质偏硬，选择适应水质偏硬的品种是养殖成功的关键。笔者经过引进、观察和示范养殖，适合北方水质环境养殖繁育的品种主要有卵胎生锵科的黑玛丽、月光鱼、剑尾鱼、孔雀鱼等；有鲤科的斑

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