Hopefully you have plenty in your saltwater aquarium along with other creatures for your clean up crew! The favourites in the hobby are hermit crabs and snails where a common rule of thumb is one per gallon. It’s good to see a couple on every piece of rock. There’s also a variety of invertebrates you can use to do a bunch of cleaning for you like urchins, sea cucumbers, sea stars, emerald crabs, fire shrimp, conchs, and many more. There is a variety in all of these, they will all have their pros and cons with where they like to clean, and what they are best paired with.
Talk to a very uncrabby Into The Blue team member today to see what’s best for your tank!!