P. grandis is the largest species of Madagascar day gecko. They are bright green with red spots and a pair of red streaks from the corner of the eye to the nostrils. Charismatic in their size, these geckos eat invertebrates, small vertebrates, nectar and pollen from flowers in the wild. This diet can be supplemented in captivity with dusted insects, bee pollen, sugar water, and fruit. A 5.0 UVB is required for proper metabolism of calcium, and a basking site of 95 F/35 C. Humidity is required to fluctuate from 50-70% over the day, which is provided by misting with water in the morning and evening. This also will provide water droplets for the geckos to drink.