Can a screen-top habitat work for hermit crabs without drying the tank out?
Yes, it can, but you will need to manage airflow carefully to keep humidity from escaping. A tight-fitting screen with secure clips helps prevent gaps, and partially covering the top with a solid panel or glass can retain moisture while still allowing ventilation. Choosing a tank with solid sides and limited screened sections also makes it easier to keep conditions stable.
When should you upgrade to a larger hermit crab habitat?
Consider moving up in size when the layout feels cramped after you add needed dishes, hides, and climbing areas, or when daily care becomes awkward because you cannot easily reach all areas. If you struggle to keep consistent warmth and humidity, a larger, well-sealed enclosure with better access and ventilation control can help stabilize conditions. More space also supports natural behaviors like walking and climbing, which encourages exploration.