The requirements of parrot fish for water quality are not very high, but if breeders want to raise them well, it is best to adjust the water quality according to their habits. Under normal circumstances, they need to grow in weak acidic soft water. When cultured artificially, the water temperature can be kept between 6.5 and 7.0. But now most tap water is weakly alkaline, so breeders can add acid regulators to the fresh water according to the requirements of parrot fish, so that the water quality will become weakly alkaline.

When raising at ordinary times, sunken wood can also be added into the fish tank, because sunken wood can ensure that the water quality is weakly acidic. If breeders want to adjust the water quality quickly, they can also use activated carbon or medical stone. If the water for raising parrot fish is too hard, it is best to boil it first and then dry it to a suitable temperature.

It is appropriate for parrot fish to change water every 2-5 days. They have low requirements for water quality, and breeders can decide the frequency of water change according to the equipment in the fish tank. If it is a fish tank without filter, the breeder needs to change the water every 2-3 days. Because the metabolism of parrot fish is fast and the pollution to water quality is serious, the breeder needs to change water more frequently. If it is a fish tank with a filter installed, the breeder can choose to change the water once every 3-5 days. Because the filter can filter out impurities and feces in the water and slow down the deterioration of water quality, the breeder can change water less frequently.