Can you blend craft sand and hermit crab sand and still be safe for the hermit crabs?

Blending craft sand with hermit crab sand is not recommended, as craft sand may contain harmful additives or chemicals that could be detrimental to hermit crabs' health. Hermit crab sand is specifically formulated to provide a safe environment, including the right texture and moisture retention. If you want to create a suitable substrate, it's best to use only products specifically designed for hermit crabs or natural sand that is free of harmful substances. Always prioritize the safety and well-being of your hermit crabs when choosing their habitat materials.