Arowana can't be raised in cold water. They belong to tropical fish and like to grow in warm environment. The temperature of cold water is low, so arowana can't survive normally in cold water. If the water temperature in which arowana live is lower than 24 ℃, they may have loss of appetite and decreased activity. If they grow in low temperature for a long time, their physique and resistance will decrease. And there will be illness or death. In addition, they are sensitive to temperature changes. If breeders use cold water to breed, there may be too much temperature difference.

If breeders want to raise arowana well, they should use heating rods to keep the water temperature above 26 ℃, and if conditions permit, it is best to keep it between 28-30 ℃.

Arowana likes weakly acidic water, and they are sensitive to the change of water quality. Breeders need to keep the PH value between 6.5 and 7.5. Arowana like clean and refreshing water, and breeders need to change their water once every 3-4 days. However, the amount of water changed each time should not be too large, and it should be controlled at one third of the total amount of water. If there is a filter, you can change the water every 5-7 days. Tap water can be selected as the water for raising arowana, but the tap water just received contains more chlorine, so breeders need to expose it to the sun before giving it to them.