放狗查了一下，吃食习惯简直跟中国鲫鱼一模一样，一点一点试探性，而且非常狡猾，大概就是美洲鲫吧，IL fishing guide 上居然没介绍。
Crucian carp are just like all other carp - they are very aggressive feeders. They feed on almost anything that lives in freshwater, from leeches to snail eggs, and daphnia to emerging insect life - they will take it all.
They will feed by sifting through the bottom silt as they hunt for bloodworms, right up to taking flies from the surface - nothing really escapes a hungry crucian carp.
But, once a crucian carp is caught a few times it soon learns and they can be the most frustrating of all British fish to catch. They seem to gently nudge the bait, sucking it in really very gently to test it for hooks - and for that reason the best way to catch them is to use the tiniest of floats dotted right down to a mere millimetre or two poking above the surface.
If you have too much float protruding from the surface you simply won't spot the tentative and delicate bite from these beautiful golden fish.
