Topsoils
When picking a soil for your substrate mix, you want to find organic topsoil. It is worth noting that topsoil is different from potting soil.
In general, the topsoil you use should not have any additives such as fertilizers, manure or perlite/vermiculite. However, there are a select few additives such as charcoal and worm castings that are safe.
You can normally find topsoil in hardware or gardening stores, and if none is available, Reptisoil is a safe alternative.
Be aware that the soils listed in this graphic may have ingredients that vary across regions. Be sure to read the ingredients and labels to ensure they do not have any fertilizer or other harmful additives.
burnt prawn
radiant flame
viral axle