Choosing the correct gecko food will depend upon the particular species of gecko you have as a pet. There are over 2,000 different species of geckos, most of which live in tropical or subtropical parts of our planet. Some eat only insects, some prefer fruits, some eat other, smaller geckos. Most geckos are excellent climbers, with those having claws often found in forested areas in and around trees. Others have smooth pads on there feet, including several species you’ll find climbing on the glass wall of an enclosure, or on the smooth wall of a house (inside or outside).