Pseudochromis springeri

The blue-striped dottyback, Pseudochromis springeri, is a small saltwater fish from the Red Sea and eastern Indian Ocean, reaching about two inches long. Its body is dark blue or black, with blue stripes running along its head and fins. The species is named after Victor G. Springer, an American ichthyologist at the Smithsonian Institution. In an aquarium, it is a hardy fish that can be bred in captivity, and using tank-bred individuals is encouraged to lessen pressure on wild populations and improve survival rates.

Compared to other dottybacks, it is less aggressive, but it may still bother small, passive fish and shrimp. It is territorial, so it is best to keep only one per tank; if keeping more, they should be added at the same time. Despite its hardiness, it should not be housed with large predators like lionfish or grouper, which may eat it.