Amazon.com: Aquatic Arts 3 Live Freshwater Pom Pom Crabs | Real Living Nano Aquarium Fish Tank Pet | Betta/Danio / Rasbora / Guppy Compatible : Pet Supplies
All About Saltwater Tank Crabs | Invertebrate Help | AlgaeBarn
The Benefits of Hermit Crabs in Your Aquarium | PetGuide
I bought a crab today lol. I didn't even know that was a thing for freshwater aquariums. I've never seen one for sale. : r/Aquariums
All About Saltwater Tank Crabs | Invertebrate Help | AlgaeBarn