How to keep goldfish healthy?

If you want to keep goldfish healthy, you must first have certain requirements for water. Tap water just taken from the tap must not be used to raise fish. You must dry the water in the sun for a day to kill all the heavy metals and bacteria in the water, and then put the fish in it.

Fish tanks must be cleaned and disinfected, soaked in clear water, and of course, potassium permanganate and salt, and then discharged.

Secondly, it is to change water. When changing water, don't let all the water go, just put one-third of the water. When putting new water, make sure that the temperature of the new water is similar to that of the water in the bathtub, otherwise the fish will not be able to stand it.

Then there is feeding. Goldfish have to buy special food for goldfish. Don't feed too often or too much, just feed once every two days. Because fish will only die, not starve to death, even if they are not fed for ten days. Moreover, if the fish are fed too much, they will defecate too much, and the water will soon become turbid, which will have a certain impact on their lives.

Finally, pour some bactericidal drugs into the water regularly, otherwise the fish will easily get white spot disease.