Swallow fish need to take the eggs out of the can after throwing them, so as to prevent swallow fish from eating their eggs by mistake, resulting in less fry. After throwing eggs for more than ten minutes, swallowtail fish can leave the tank without feeding, so as not to pollute the water quality, especially the live bait. Cyclops mixed with Daphnia can penetrate the outer wall of fertilized eggs, greatly reducing the hatching rate of fish eggs.

The feeding water temperature of swallowtail fish is generally controlled between 24℃ and 28℃. In this temperature range, swallowfish has a strong appetite and grows rapidly. It is not affected by the change of external temperature and always maintains a relatively stable state.