to raise goldfish to had better choose transparent vitreous crock, this kind of fish crock can install filtration system, the space is bigger, can make a scene. If you feed a small number of mantissas, you can choose a small fish tank. The size of the fish tank should be adapted to the number of goldfish, so as to avoid the phenomenon of choosing a big tank with fewer fish, which will also waste resources. Don't choose a small tank for many fish. The result of narrow space is inevitably low dissolved oxygen. If the growth of goldfish is restricted, it is easy to get sick.
After choosing the fish tank, you can decorate the fish tank according to your preferences. The premise of decorating the fish tank is that the space is sufficient and safe. You can put pebbles, small rockeries, aquatic plants and so on in the fish tank, but pebbles should not be put too much. Generally, there is no need to put sand and stones in the fish tank, because sand and stones are easy to hide impurities and are not easy to clean. You can put such decorations as rockeries instead of plastic ones, because plastic decorations generally have edges and barbs, which will scratch the scales of goldfish and pollute the water body. It is best not to place aquatic plants, aquatic plants are easy to rot, goldfish love to pull aquatic plants, it is easy to pollute the water. When the fish tank is large, it is better to install a filtration system, which can not only ensure the water body, but also increase the oxygen content in the water.
