Quite a few aquarium crabs need a paludarium set up, that is a tank that comes with equally water and dry land. Nevertheless, usually there are some fully aquatic alternatives as well just like the pom-pom crab as well as the tiny Thai micro crabs. Freshwater puffers need tricky-shelled foods https://aquariumshoponline.blogspot.com/2023/04/unveiling-beauty-of-flowerhorn-fish.html