How to raise fish in the hotel fish tank?

Do you mean the fish raised in the hotel is for others to eat or watch?

If you look at fish, change the water regularly to keep the water quality as usual. But because people come and go in the hotel, the timid fish will be frightened, and it will be bad for a long time. It is suggested to put up a sign, asking guests not to take pictures of the fish tank, and just look at it from a distance.

If it's fish for people. . . Then I wish you a prosperous business. The fish were slaughtered and cooked as soon as they arrived. Why worry about keeping them alive?