They usually develop from egg to tadpole in 6 to 12 weeks. Keep that in mind and don't panic when it gets cold; in winter the tadpoles will grow more slowly. The ideal temperature is between 65-75 degrees Fahrenheit, or around 20-25 degrees Celsius. When your tadpoles develop legs you will need a container with dirt for them to crawl up onto, or they will drown. At this time the tadpole will be using its tail as food and it will become an adult frog. If you aren't releasing the froglets, they will likely need larger housing. The tank or housing for them must be kept clean daily, otherwise, bacteria will spread rapidly and can kill them.

TL;DR in Vietnamese:
Hãy kiên nhẫn. Chuẩn bị cho quá trình biến thái. Không cho nòng nọc ăn khi chúng mọc 2 chân trước. Cho chúng ăn nhiều thức ăn hơn sau quá trình biến thái. Lưu ý rằng nhiều con ếch con không thích bị chạm vào.