Lucky Reptile HatchRite 2L is a specially formulated breeding substrate for reptile eggs which already has the right substrate humidity. It is ready to use and no water has to be added. HatchRite has been used by professional American breeders for years and has been shown to lead to increased hatch rates and success. Normally it is not necessary to add water during the incubation process. You simply open the bag and pour it into a closed breeding box. HatchRite has been used with big success incubating amongst a lot of other species: bearded dragons, leopard geckos, corn snakes, ball pythons, green tree pythons, etc.