What should be the temperature and salinity of mandarin fish, precious fish, oriental star spot and Hualong in the hotel?

The water temperature of mandarin fish is 20-22 degrees, and that of fresh water and salt is 0.005 degrees;

The water temperature of Duobao fish is 20-24 degrees and the salinity is about 1.0 18.

The water temperature at East Star Point is about 20℃ (constant temperature is needed in winter) and the salinity is 24-26%.

Hualong temperature: 18~ 19 degrees, salinity 21; Change water once a week.