This is a special substrate blend for use in enclosures where Arid species are being housed.
This substrate consists of a special blend of Spider soil, bark chips, and sand.
It is a much denser mix than normal soil, and helps to create more natural environment,  for dessert species.
It can be used as it is, or mixed in 50/50 with existing soil to spead the mix further.
It can be misted lightly rather than kept dry, and will retain moisture very well.
There are many species of Jumpers that originate from arid countries/locations which seem to thrive better without a wetter Bio-Active set up.