Small goldfish can't eat small fish under normal circumstances, because small goldfish are smaller in size, so their mouths are smaller. Under normal circumstances, they can't swallow small fish in one bite. In addition, the actions of small goldfish are not particularly flexible, but those of small fish are generally flexible, and small goldfish cannot catch them under normal circumstances. Although small goldfish can't catch small fish, they are larger in size when they are hungry, and they will catch some small fish to satisfy their hunger.
Can goldfish be mixed with small fishgoldfish can be mixed with small fish, but not with all small fish. More suitable with small goldfish with the fish are koi butterfly carp and so on these kinds of fish and goldfish habits are similar can be put together to raise.
In addition to these fish, breeders can mix them with small tropical fish. More suitable is guppy, zebrafish, kissing fish, fairy fish, traffic light fish, rich fish, lotus lantern fish and so on. Although these kinds of fish are small fish, they do not require high water temperature. As long as the water temperature remains stable, they can grow normally. In addition, these small fish are flexible in their actions and are not easy to be caught by goldfish, so they are very suitable for polyculture together.