Goldfish have a very large variety, which can be roughly divided into four types: grass goldfish, culture goldfish, dragon goldfish and egg goldfish. Moreover, these four kinds of goldfish contain different varieties, different varieties of goldfish not only have great differences in appearance, but also in temperament and habits. Therefore, in peacetime when breeding goldfish, in principle, it is not recommended to mix.
For example, although Wen species goldfish and dragon species goldfish are quite similar in appearance, the eyeballs of dragon species goldfish are more prominent, and their eyeballs are more easily injured if they are mixed; Wenzhong goldfish is a relatively easy to start the goldfish, when they swim, the head tumor may become their burden, more vulnerable to attack. So, if possible, try not to put them in a mixed culture.
If you must choose different species of goldfish to be mixed together, then there are many factors to consider. The first thing to consider is the size, we must choose the size looks similar to the goldfish, the size difference is too large to easily lead to small goldfish injuries. Moreover is the disposition question, generally speaking goldfish's disposition is quite gentle, but occasionally will have certain variety disposition to be quite fierce, needs to pay attention to avoid. Moreover is the habit question, the habit difference is not big goldfish only then may mix raises.
