将草食性鱼类和/或无脊椎动物物种添加到海洋水族馆中的实践非常普遍。因此,在业余爱好中被称为“清理工作人员”或CUCS的草食动物包装的普及。但是,几乎很普遍的是,添加草食性物种或CUC来消除藻类,只是发现它并不完全满足期望。为什么有时会发生这种情况?这里有一些可能性:
藻类不在菜单上
我们喜欢认为食草动物会享用and all algae put in front of them, but most are more discerning than that. For example, many herbivorous fish and inverts may do a great job of grazing diatoms and algal films but then completely ignore the forms of most concern to hobbyists, such as those tough, unsightly strands or clumps of hair-type algae.
实际上,我对海洋生物动物的经历总体上是,实际上很少有人会彻底消费藻类. The涡轮andAstraeaspp. snails commonly included in CUCs come to mind here. Many sources claim they’ll devour hair algae, but none of the specimens I’ve kept have ever done so despite making quick work of diatoms and algal films. Maybe I’ve just had bad luck.
藻类太多
In some cases, a herbivore is actually eating the algae in your tank but falls short of expectations simply because it can’t keep pace with the rate of algae production—sort of like Lucy and Ethel in the chocolate factory. In this situation, the nutrient input side of the equation is clearly way out of balance with the nutrient export side, so you have to address that through improved水变化and蛋白质脱脂,减少喂食等。在您期望控制藻类问题之前。
标本太饱食了
如果您提供的各种准备好的食物填充了草食鱼,那么无论它是否恰好在自然菜单上,它都可能对放牧藻类的藻类几乎没有兴趣。这可能会带来一些困境,因为一方面,您不想冒险通过预扣食物饿死鱼,但另一方面,您想鼓励其自然放牧的行为。
在这种情况下,您可以做的最好的方法是尝试逐步减少进食的数量或频率,直到达到正确的平衡为止。当然,根据您的水箱中的另一个牲畜,这可能是不可行的。例如,如果您在同一水箱中有木板鱼每天需要多餐,则预扣喂食将适得其反。
个人结果各不相同
有时,给定的鱼类或无脊椎动物的单个标本只是在规范之外的表现,这也可以适用于食肉动物的趋势。正如我在上一篇文章中提到的那样,一些业余爱好者取得了巨大的成功使用Mithraculus sculptus螃蟹用于气泡藻类控制,而其他人(包括我自己)没有这样的运气。同样,一个黄色的唐(Zebrasoma flavescens)可能会在其水箱中生长的头发藻类上直达城镇,而另一个则可能会在这些东西上发出长长的鼻子。谁说为什么?