The reasons why the parrot fish's body is tilted and sinking to the bottom:

1. The water temperature is too low. If the temperature in the growing environment of parrot fish is too low, their immunity will decrease, causing them to sink to the bottom or swim slowly.

2. Fish bladder imbalance. Because the nutritional content of the feed fed to the parrot fish is too high, fat accumulates in the body of the parrot fish, which presses the swim bladder and ultimately affects the balance function of the parrot fish.

3. Suffering from enteritis. Because the food fed by the owners is not clean or they eat too much, the food accumulates in the body and is not excreted in time. Over time, bacteria will breed, infect the intestines and cause enteritis.

Solutions for parrot fish sinking to the bottom:

1. Increase the water temperature. Use a heating rod to first increase the water temperature to 30°C and keep the temperature constant. Wait until the parrot fish returns to normal, then adjust and maintain the water temperature between 25-28°C.

2. Adjust feeding. Change the feeding method to avoid fat accumulation in parrot fish.

3. Medicinal bath treatment. Pet owners need to replace the water in the fish tank in time, and then sprinkle an appropriate amount of oxytetracycline or gentamicin into the new water to treat the parrot fish with a medicinal bath.