1. Protection function: The fish tank isolation box and hatching box can protect weak or sick fish from being attacked by fish, and also prevent small fish from being accidentally eaten by large fish, protecting the safety of fish life.

2. Hatching purpose: The hatching box has a safe and stable environment, which can provide an ideal hatching environment, improve the hatching rate of fish eggs, and enhance the success rate of fish reproduction.

3. Convenient observation: Isolation boxes and hatching boxes are usually made of transparent materials, which can facilitate the observation of the health status of fish and the hatching of fish eggs, so as to promptly deal with possible problems.

4. Space separation: By using isolation boxes, effective space separation can be achieved to classify fish farming, especially for aggressive fish species or fish species with special needs, which can avoid conflicts between fish due to space issues.

5. Convenient feeding: Isolation boxes and hatching boxes can also make feeding more convenient. By classifying fish, feeding can be done more accurately, avoiding excessive or insufficient feeding and effectively ensuring the healthy diet of fish.