Why is relying only on fine play sand discouraged for BDFB substrate?

Answer

It is physically difficult for the beetles to walk on, causing excessive energy expenditure

Using only fine sand is discouraged because it makes locomotion physically challenging for the beetles, forcing them to use excessive energy navigating the surface.

Why is relying only on fine play sand discouraged for BDFB substrate?

#Videos

Blue Death Feigning Beetles Care Guide - Asbolus verrucosus

insectbeetlecare