Blackmargined damsel

The Blackmargined damsel (Pomacentrus nigromarginatus) is a small, brightly colored marine fish, characterized by its vibrant blue body and distinctive black margins on its fins. It is indigenous to the western Pacific Ocean, found in coral-rich areas of reefs. This species typically exhibits a slender, elongated body shape. Despite its attractive appearance, it is not among the most popular choices in the aquarium trade, likely due to its less well-known status compared to other damselfish.