How many goldfish is good to keep at home?

Depends on the size of the chosen tank, usually keep 3, 5, 7, 9.

Tips for keeping fish:

1, feeding: feeding are rich in nutritious animal feed and white sesame seeds and so on. Animal feed such as water fleas, earthworms, yellow mealworms, green worms, skin worms and so on. The main feeding is earthworms and white sesame seeds. Both red and black earthworms can be fed. Raw white sesame seeds can be fed mainly. White sesame seeds are easily available. Goldfish love to eat them, they are easy to digest and do not pollute the water easily.

2, light: it is best to put the fish tank in the sunshine 1-2 hours. This use of ultraviolet rays of the sun sterilization. Play the role of disease prevention. This can reduce the disease. Try to do fish disease prevention as the main, supplemented by medication. At the same time, due to photosynthesis, the color of the fish body is also more bright and beautiful.

3, water change: to change the water often, can increase the dissolved oxygen in the water. Water change can only change to one-third to one-quarter, can not change a lot at once, the fish do not adapt. It is important to keep the water in the aquarium clear. There is enough dissolved oxygen in the water for fish to grow and grow fast. Otherwise, they will stop growing and even die. When to change the water, there is no conclusion, according to the water quality, the water quality turbid more change, otherwise less change.

4, stocking density: domesticated rectangular aquarium because of the small size, must not be more than one, should be less than more.