推荐回答(4个)
一般是超不过20厘米的。七彩神仙鱼能长多大,也取决于它的品种,不同品种的七彩神仙鱼成鱼后的大小也有所差异,大的比如老虎狗会长到20厘米以上,而其他七彩神仙鱼品种都是15厘米左右。
一般饲养到14-16个月时就算成鱼了。或者说,当公鱼可以受精,母鱼可以产卵时就算是成鱼了。小鱼一般说的是两寸的鱼,如果幼鱼有25条以上,需要用150公升以上水量的鱼缸饲养,才能满足每条小鱼对饲养空间的需要。空间小阻碍七彩神仙鱼自由发育,一般成年后在15厘米左右,达不到20厘米。当七彩神仙鱼长到四寸以上时,饲养的数量要适当的减少一些,一般不要超过20条。
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超不过20厘米的。
七彩神仙鱼能长多大,也取决于它的品种,不同品种的七彩神仙鱼成鱼后的大小也有所差异,大的比如老虎狗会长到20厘米以上,而其他七彩神仙鱼品种都是15厘米左右。
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扩展资料:
野生的黑格尔七彩大多生活在尼格罗河。黑格尔七彩最显著的特征是在体工侧的中央有又黑又粗的第五暗色纵带。七彩神仙鱼品种主要以有无黑格尔暗带来进行区分。
本鱼种体侧分布有许多细长水平条纹.颜色依产地不同.就有灰蓝色,银蓝色以及绿蓝色。
黑格尔的人工种才会如此少,於是许多人以公黑格尔来杂交其他种,企图将黑格尔那商标般的黑Bar遗传下来,但困难的是在子代黑Bar遗传率极低.... ,当然也有人喜欢黑格尔的水波纹。据说已有6种之多本种七彩的眼睛大多是暗褐色到暗橙红颜色。
首先也要看一下品种,如:老虎狗绝对可以20厘米出头,但是一般的七彩神仙鱼都能长到20cm左右,不过在水族箱中要长这么大就有点困难了。我养出的七彩最大的是15cm,后来因为某些原因就送走了,不然估计还可以长大一些,因为我送走时彩才一岁左右。
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