It is good to put coral in the guppy tank, because guppy likes weakly alkaline water, and coral can adjust the water quality to weakly alkaline. In addition, coral can also keep the hardness of water, and weak alkaline hard water is most suitable for guppy growth, so it is better to put some coral in guppy fish tank. However, if there are more guppies, it is not recommended to place corals. Because coral has many tiny pores, the number of reared corals will increase, and the metabolic impurities will also increase. It is easy to accumulate discrimination and impurities in small holes, which breed bacteria and lead to the disease of guppy.

If the space in the fish tank is not very large, the breeder can put some plants extending outside the fish tank. For example, green radish, Lysimachia christinae, Chlorophytum If the fish tank is high enough, the breeder can place some rich bamboos. However, the number of places should not be too much to avoid occupying the space of fish.

In addition to some aquatic plants, breeders can also place some aquatic plant mud and plant some aquatic plants. Because aquatic plant mud can warm nitrifying bacteria, the water quality becomes cleaner and fresher. However, aquatic plant mud needs to be added regularly to ensure adequate nutrition of aquatic plants.

It is not recommended to put some decorations that are easy to hide dirt, because the filtration system in guppy fish tank is not very strong, and putting some decorations is easy to breed bacteria.