ABSTRACT
The supply of fish fry and fingerlings is one of the key questions facing fish culture industry. In order to solve the supply problem, it is necessary to increase the survival rate of fish fry to fingerlings by improving rearing techniques. The rearing capacity of the pond can be increased. When bottom mud is removed, pond volume is increased, which increases the rearing capacity. Camellia residue can kill pest fish, frog eggs, tadpoles, snails, and some aquatic insects, but it is not effective against bacteria. On the other hand, it helps the growth of green algae, which is not easily digested by fish. Camellia residue, therefore, is not as good an agent as lime. When fry are first placed in the pond, they are more or less evenly distributed. However, when they grow to about 1.5 mm in length, their distribution covers different food habitat.
