请问如何辨别家养金鱼生小鱼
偶刚买得金鱼，长点经验，请教一下各位。请多多帮忙啦！
推荐回答（1个）
金鱼是产卵孵小鱼的,不是生小鱼的.首先要辨别金鱼的雌雄,才能知道是否产卵孵小鱼.
如何鉴别金鱼的雌雄
饲养一池金鱼，也许有雄有雌。但如果一池鱼全是雌的，就可能有问题了。因为到了繁殖期，雌鱼满腹“怀春”如果没有雄鱼交配刺激，有可能因产不出卵而涨死。所以，在一池金鱼中，一定要保持好雄鱼和雌鱼的比例，才能保证金鱼的正常生活。如何鉴别金鱼的雌雄呢？可从以下几方面加以区别分辨。一般来说，幼鱼教难区分，1龄鱼区别较明显，到了繁殖期特征更明显。
首先是观察体形，雌鱼体形短圆，雄鱼较瘦长。如果饲养的是高头、虎头、狮头等品种，可观察其头部，雌鱼的肉瘤较低欠丰满，雄鱼则高而饱满。其次是观察鳃盖，到了繁殖期，雄鱼鳃盖有稀散的突起点状追星。雌鱼的胸鳍短而端圆，雄鱼胸鳍较长，尾端尖，繁殖期胸鳍上也有追星。雌鱼的泄殖孔圆而稍大，呈梨形，柄端向前，近胸鳍，微向外凸；雄鱼棱形稍小，如枣核，两端较尖，中间膨大，平而稍凹。还有就是繁殖期的雌鱼游动较慢，反应亦较迟钝；雄鱼游动活泼，追逐灵敏。最后是观察鱼的腹部，雌鱼腹部柔软，自腹至肛，硬棱不显，繁殖期腹部膨大滚圆；雄鱼腹部较硬，自腹至肛有明显硬棱，繁殖期不膨。不过这一点不能误判，因为有的金鱼品种，不论雄雌腹部都是膨大滚圆的，在鉴别时一定要细心分辩。
金鱼的繁殖
每年四月的清明节前后,气温适宜,正是鱼类的繁殖季节.金鱼和锦鲤的繁殖也集中在这一季节.繁殖前,要作好种鱼的选择和鱼巢的准备.金鱼和锦鲤的繁殖方法有自然繁殖和人工受精法.
1、自然繁殖法
春天，当水温在18-22度时，金鱼和锦鲤的性腺发育成熟，黎明时，就会看到它们有互相追逐的活动。当气温适宜时，可将它们换入新水中，将事先准备好的水草、鱼巢放入水中。黎明时，亲鱼互相追逐，数条雄鱼连续追逐一条雌鱼，并将雌鱼推入水草丛中或鱼巢中，雌鱼身体抖动，鱼卵一排排地洒落下来，雄鱼立即射精，受精卵散落在水草或鱼巢上。一条雌鱼一般要分几次才会将体内的卵粒产完。数条雌鱼就会产下许多卵粒。当看到鱼巢或水草上卵粒较多时，可将附有鱼卵的产巢取出，将新的水草或鱼巢放入。有鱼卵的产巢，可放在0.2PPM浓度的孔雀石绿溶液中浸洗3-5分钟，然后放入清水中孵化。亲鱼的产卵活动一般可持续到上午9-10点，将最后一批有鱼卵的产巢取出，消毒后放入孵化缸中。第二天黎明，亲鱼还会有产卵活动，一般来说，同一缸中的亲鱼产卵活动可持续2-3天。亲鱼第一次产卵结束后，一般间隔7-10天，可进行第二次产卵。
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