Tilapia by hanging water means that tilapia is generally cultivated in fish ponds, but it is fed with feed during the cultivation process, so that the tilapia cultivated in this way is large and rich in oil. Hanging water is to raise fish through clean water, without putting any feed or other food, to slim down the fish. After hanging water, the fish will have no muddy and fishy smell, which is very delicious.

More than 4000 years ago, tilapia was the favorite fish of ancient Egyptians. China worships carp because it is prolific, and ancient Egypt worships tilapia because of its body and super power of "bringing back the dead". The ancient Egyptians saw that young tilapia often escaped from their mouths, and they felt that this fish contained the hope of rebirth.