HCA: Hermit Crab Association

I don't think you need to change your substrate in the tank. My crab doesn't dig that much, but he seems fine. He might just be getting used to it? Make sure not to put the calcium sand back in it. I'm not sure about allergies. Maybe it could be something else in the tank? I will not be going back ...

After 3 months he should have settled into whatever his normal routine is. Not all crabs are big diggers, but if you've noticed a major difference in his behavior then he may prefer a different mix. When was the last time he molted? As far as allergies, playsand should be allergen free as it's lite...

Hi, newbie here. I have a question about what to do with the substrate. Recently I've been concerned because ever since I changed it about 3 months ago, I haven't seen my guy digging any. His tank before had a mix of mostly coco fiber with a very small amount of calcium sand mixed in, and now he has...