Josh's Frogs Vermiculite is an old standby of experienced reptile breeders. Vermiculite is considered by many to be the ultimate incubation media for many species of reptiles. Easy to use and inexpensive, Josh's Frogs Vermiculite allows you to properly incubate and hatch healthy, robust offspring. Care: Add clean, distilled or Reverse Osmosis water to the Vermiculite at a 1:1 ratio, but only make as much as you are going to use. Vermiculite does not store well damp. Vermiculite is widely used in the horticulture industry as a soil amendment and when mixed with the soil, it provides better drainage and aeration. It is also used as a permanent soil conditioner and lasts much longer than other common soil conditioners.