Lucky Reptile Aqua Crystals consists of a granulate that will swell up to 'jelly' if water is added. The 'water jelly' is very flexible in its use. It is an excellent water source for spiders, scorpions, feeding insects, etc. and can also be used to provide water to small animals during transport or a long-term water source in cages (i.e. when on vacation). You can also mix vitamins, minerals and medication into the 'jelly' to ensure an optimal maintenance of your animals. Aqua Crystals can also be mixed under the substrate to increase its water storage abilities and the humidity inside the terrarium.