How to deal with the small fish tank that novice fish farmers just bought?

Put some water and potassium permanganate, and the water will turn pale red. Wipe the rag with a brush or foam dipped in water, and wipe it with potassium permanganate water everywhere. After wiping, take out the water, dry it with a cloth and let out the water. If you don't plant grass in fish farming, you don't need to put sand.

Then open the filter and put a few small fish in a couple of days. If you release Yulebao, you can release the fish immediately. In a few days, the small fish can be officially released. Change one third of the water every day. If the water must be aired for more than one day, the number of water changes can be gradually reduced when there is no problem in observing the water quality. Raising tropical fish requires a heating rod.