人工喂养小丑鱼需要注意什么问题?

2025-03-26 23:34:53
推荐回答(1个)
回答1:

此属鱼身材虽小,却是最易人工喂养的鱼种。它们能容忍亚硝酸盐稍高的劣质水质,实践中我们可以先将雀鲷科的鱼种投缸喂养,来加快新缸养水的时间。在我们有着3年历史的大型岩礁造景水族箱中,曾经有过红小丑鱼产卵并受精孵化的现象发生,当很小的鱼苗孵化出来后,我们兴奋异常,但由于水族箱水量大,珊瑚岩石缝隙交错,无法捞取其中的鱼苗,最后这些鱼苗很快成为了其他鱼儿的食物,非常令人心痛。

海水鱼的水温控制在26度,可喂与藻类,动物性食物及安全的人工饲料,海水比重为1.022,如在加上海葵一起共养,就更好了。

繁殖技巧:

食藻螺、五爪贝等和一般我们日常所食用的九孔贝类人工繁殖一样,在性腺成熟时,可以应用简易升温法或降温法来给予刺激促其放卵放精。首先取出成熟的种贝,雌雄比例约1:3,利用加热器或冰块使水温缓速上升或下降4℃左右,再急速降温或升温2℃,再置回原缸中回复室内,即可见白色烟雾状精子及卵子颗粒大量排出。大部分贝类雌性个体稍多於雄性,以九孔贝为例,将其外套膜掀起即可分辨性别,雄性成熟时生殖腺饱满呈淡或乳白,雌性呈绿或褐色。

小丑鱼是珊瑚礁鱼中最可爱的一群,几乎每个饲养海水鱼入门者,都会优先挑中它,主要是它健康强壮好养,价格不高,还有它和海葵共生的特殊生态行为。小丑鱼属於雌雄同体雄性先熟的鱼种。在水族箱内繁殖成功的案例相当多,国外也有不少专业的繁殖场,本种鱼有许多有趣的现象,例如:当水族箱内一群同种的小丑鱼中,只有一只雄鱼,其余皆是雌鱼。当把雄鱼移开,一段时间後雌鱼中有一只会转性为雄鱼,当再把原来的雄鱼放回去後,转性的那只雄鱼又会再回复原来雌鱼的状态!

如果你也想让你家的小丑鱼多子多孙,那么不妨照以下的方式一试:

首先为它们打造一个温馨安适的小窝,这个小窝的作法是找几块活岩石,为它们搭建一个有天然屏障的山洞,必须注意保持有适当的水流通,洞内最好放一个椭圆的鹅卵石,洞口外贴著卵石,再找一个比较大型的海葵,涨大後最好几乎可以涵盖整个洞口,或包覆卵石。理想的海葵是大地毯海葵或长须公主海葵,以提供安全的庇护。再来是挑选体型较小的雄鱼(红小丑雄鱼是鲜红色的)1-2只,配上体型较大腹部性腺成熟的雌鱼(红小丑雌鱼是暗红色)4-5只,饲养一段时间後观察配对的情形,例如大部分配对的小丑,在海葵内只有一对窝在一起,其余则被赶开,为防干扰,其余小丑鱼则可以移走,然後每餐再为它们调配特制的食物,可以用VG-微生物滋养剂加维他命E混在饵料内喂养。

产卵前的各种迹象观察:

1.雄鱼和雌鱼性腺成熟时,雄鱼的交配器和雌鱼的输卵管会明显突出。

2.产卵期接近时,会有一个有趣的现象,它们会勤於整理爱巢环境,用口扫除藻类、砂砾。

3.繁殖场大部分用荷尔蒙注射来催熟,注射後24Hrs内会开始产卵。

4.产卵一般都在下午至傍晚时间进行约2Hrs,每次产卵从数百至上千个。

5.雌鱼部分产卵後,雄鱼紧接放出精子,交替至产卵完毕。

6.受精卵外膜透明,卵黄呈橘色。

7.孵化过程,雄鱼雌鱼交互以口吹或用胸鳍、尾鳍摆动来去除卵上的污物,及让卵充分接触氧气,雄鱼到後期尤其更勤快。

8.10天左右就可以清楚看到卵囊内的眼睛,10-14天即可孵出。

9.仔鱼孵出时非常脆弱,有强烈趋光性。因此移开亲鱼,关闭水流,打气即可,不过必须维持适度换水,PH及温度尽量维持不要变化太大。

10.仔鱼的饵料,出生後用轮虫加VG喂食,每日1回;5日後用轮虫加刚孵化的年虾,每日2回;半个月後全部用丰年虾;一个月後开始少量用蛤蜊喂养。

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