What is the recommended minimum substrate depth for *Cherax destructor* in a home aquarium setup?
Answer
Six to eight inches
When setting up a home environment for a yabby, recognizing their paramount need to burrow is crucial. A proper tank setup demands a deep layer of soft substrate, such as fine gravel or sand, to permit the construction of complex tunnel systems. The suggested minimum depth for this soft substrate should be at least six to eight inches, depending on the individual yabby's size. Failure to provide adequate depth prevents the yabby from engaging in its natural digging behaviors, which are vital for its psychological well-being and can lead to stress.

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