African Fern Pine requires moderate to high humidity levels, around 50-60%, and prefers to be kept in a temperature range of 60-75°F (15-24°C). It is important to avoid sudden and extreme fluctuations in temperature and humidity, as this can negatively impact the plant's health. Providing regular misting, grouping plants together, or using a humidifier can help to maintain the necessary humidity levels. In terms of temperature, it is important to keep the plant away from drafts and direct sunlight, as this can cause the temperature to fluctuate.