Crabs These crabs are useful members of the cleanup crew, helping to keep the aquarium free from nuisance algae. Showing all 2 resultsSorted by latest Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Hermit Crabs – Red TipRated 5.00 out of 5 $1.59 Read more Hermit Crabs – Blue-legged (Tiny)Rated 5.00 out of 5 $0.99 Read more