1:Sand Shifter Starfish -keeps DSB Nice and clean
2:Astriea Snail's
3:Nassarus snails
Note with Crabs/Hermit crabs --before adding any of these clawed critters to your system, be mindful that many of these crabs—even those that are largely considered herbivorous—are opportunistic omnivores that will sometimes decide to consume things we’d rather they didn’t.
cheers!