. Goldfish is not a tropical fish. It is a standard cold-water fish. Tropical fish refers to the tropical waters, mainly divided into freshwater tropical fish and marine tropical fish. Generally, tropical fish have high requirements for water temperature, and the color of fish body is bright, which is of great ornamental value. Goldfish originated in China, and now it is mainly produced in Japan, Thailand and China, not in the tropics. And goldfish can tolerate the temperature of 0-39 degrees, tropical fish can not accept the water temperature below 10 degrees, so goldfish is not tropical fish.
. Goldfish do not require high water temperature, even at 0 degrees, they can survive, but the most suitable life for goldfish is 20-28 degrees. If you live in a water temperature below 20 degrees for a long time, it is easy to have symptoms such as decreased resistance, slow growth and development, and illness. Although goldfish do not require high water temperature, the sharp rise or fall of water temperature will seriously affect the normal life of goldfish, and sometimes even die directly.
do goldfish like? Goldfish like neutral or weak alkaline water, and the PH value should be controlled between 7.0 and 8.0. Goldfish like new water. If there is no filtration system in the fish tank, the water can be changed every 2-3 days. If you have a filtration system, you can choose to change the water once a week. The amount of water changed each time should not be too large and should be controlled at one third of the total amount of water.
