Aquarium fish can choose goldfish, but not all goldfish are suitable for aquarium fish, because of the difference in species, some good, some bad. Usually choose grass gold as a tank fish, this is the most common goldfish, special skin solid, in the water quality is very muddy place can live, so used to break the tank is particularly appropriate.
Coffee fish is a tropical ornamental fish, native to India. Although it is a tropical fish, it can tolerate the low temperature of 16 C. Generally, it grows better in neutral water, has a mixed diet, and has no requirement for water quality. It's good to use it as a tank fish, but it can't be mixed with other fish, otherwise it will attack each other.
The guppy is a small tropical fish that is very suitable for novices to raise. It is also relatively easy to raise. It can be used not only as a tank fish, but also as an ornamental fish. It has a gentle temperament and can be mixed with other fish. However, this kind of fish has a relatively short life span, only living for a few years, and needs regular replenishment or artificial breeding.
Mary fish's original habitat is very diverse, whether it is freshwater fish or coastal waters, it can live. Moreover, this kind of fish has strong resistance to pollution and can survive in low dissolved oxygen water, so it can be used as a tank fish, which is very suitable for testing the water.
