What kind of medium-sized tropical fish is better? How to raise it?

Tropical fish are not difficult to raise, generally speaking, they are carefully raised and properly managed; Pay attention to stocking density to avoid the change of water temperature; Keeping good water quality, fresh bait, qualitative, quantitative and regular feeding can raise ornamental fish. The following are the essentials that must be mastered in raising ornamental fish. Let's talk about what medium-sized tropical fish is better to keep at home:

1, Blood Parrot: This is a kind of yin-yang fish, and like the so-called liger and mule, it has no ability to breed the next generation. This is a new fish produced in Taiwan Province Province, which is a hybrid of devil fish and red-hot fish introduced from South America. Because of its flame-like appearance, bright red color and elegant posture, it soon became a popular feng shui fish species. Its average life span is about seven years, and it can grow to about 20 centimeters. The biggest disadvantage is that you are afraid of cold, so you must install a thermostat to keep the temperature in the fish tank at 28-30 degrees Celsius.

2. Goldfish: Goldfish is an ornamental fish species that was continuously improved in the Song Dynasty in China, also known as national treasure fish. Nowadays, there are quite a few kinds of goldfish, which are difficult to test. For example, there are more than 100 kinds of goldfish on display in the goldfish hall of Ocean Park in Hong Kong. The more popular varieties are trachoma, red peony, black pearl, teapot and so on. Goldfish symbolizes wealth and longevity.

3. koi fish: koi fish has been keeping goldfish in China for longer. Koi fish has always been regarded as a spiritual fish, which can make the family rich. However, due to the limitation of feeding space, there are not many families that raise koi fish's geomantic fish, mainly enterprises and institutions.