Baby guppies usually need 3 to 4 weeks before they can be raised with adult fish. During this period, baby guppies are small in size and have a weak immune system. They are easily attacked or eaten by adult fish. Therefore, it is recommended to raise baby guppies separately during this time or place them in a small nursery box specifically designed for fry to protect their safety and strengthen their constitution.
In addition, the conditions for raising baby guppies together with adult fish in a large fish tank include: the baby guppies should reach about one-third the size of the adult fish, there should be enough shelters and escape spaces in the fish tank for the baby guppies to hide, and the water quality should be regularly tested to keep it clean and stable. During the process of gradually combining the tanks, you can first put a few relatively robust baby guppies into the large fish tank and observe them for a few days. If they can adapt smoothly and survive, then gradually put the other baby guppies into the tank.
To ensure the healthy growth of baby guppies, it is recommended to keep the water temperature between 24 and 28 degrees Celsius, change part of the water regularly to keep the water quality clean, and reasonably feed high-protein and low-fat foods such as water fleas and brine shrimp eggs. At the same time, closely monitor the growth of the baby guppies and adjust the breeding environment or feeding strategy in a timely manner to ensure their healthy development.