This is a pearl rainbow fish. Pearl rainbow fish, commonly known as Amazon ray. The country of origin is the whole of South America. Pearl fish is one of the most common fish in aquarium. It has beautiful stripes, the back color is from brown to light brown, and there are round creamy spots scattered like pearls, so it is called "pearl oyster". The abdomen is pure white, staying underwater all the year round and occasionally diving into mud. The suitable water temperature is 22-26℃, and weak acid water quality is preferred. Pearl ray is extremely sensitive to the change of water quality, so try to use old water instead of all new water. If there is no old water, you can mix the new water with the raw water, but don't add salt. The sand in the sink should be fine sand so that it can dive in. Pearl fish is one of the fish most feared by Amazon residents. Because the thorn in its tail handle is highly toxic, if you don't know that it dives into the sand and suddenly steps on it, it will be very painful and may even die. They dug countless round caves in the local shallows and hid them inside. You must be careful when you step into this river. When you are stung by a stinger, you can pull it out, but don't forget to apply trauma medicine to avoid inflammation. Zhu Lei has good posture and flexible movements. Although it is not an ordinary ornamental fish, its beautiful appearance and interesting movements are often unforgettable. Well, that's your answer. I hope I can help you.