Mertens' Butterflyfish
NameMertens' Butterflyfish
Scientific NameChaetodon mertensii
Common NamesMertens' Butterflyfish, Atoll Butterflyfish
FamilyChaetodontidae
OriginIndo-Pacific, Western Pacific, Eastern Indian Ocean
Temperamentsemi-aggressive
Dietomnivore
Care Levelintermediate
Minimum Tank Size (Gallons)75
Max Size (Inches)5.5
Water TypeSaltwater
Temperature Range (°F)72-78
pH Range8.1-8.4
Compatible SpeciesLarge Angelfish, Non-aggressive Tangs, Clownfish, Gobies, Blennies, Hawkfish, Less aggressive Damselfish
Description
The Mertens' Butterflyfish is a beautiful marine fish recognized by its white body adorned with numerous dark vertical stripes, contrasting sharply with a vibrant yellow posterior, including the dorsal, anal, and caudal fins. It typically inhabits coral-rich areas of outer reef slopes in the Indo-Pacific. This species is a graceful swimmer and can be a captivating addition to a mature reef or fish-only-with-live-rock aquarium.
