Description
Hawaiian Blue Stripe Butterfly Fish – Chaetodon fremblii
Overview:
The Hawaiian Blue Stripe Butterfly Fish is a stunning marine species, featuring a pale body with striking blue vertical stripes and a vibrant yellow dorsal fin. Its graceful swimming and unique coloration make it a captivating addition to reef and community aquariums.
Origin:
Endemic to the Hawaiian Islands, native to coral reefs across the central Pacific.
Feeding:
Omnivorous — thrives on frozen or live mysis shrimp, brine shrimp, finely chopped seafood, and high-quality marine flakes or pellets, with occasional algae grazing.
Tank Mates:
Best suited for peaceful reef and community tanks, avoiding aggressive or nippy species.
Aggression:
Generally peaceful, though may defend small territories if space is limited.
Experience Level:
Recommended for intermediate to advanced aquarists, due to its dietary requirements and sensitivity to water quality.
Water Parameters:
-
Temperature: 74–80°F (23–27°C)
-
pH: 8.1–8.4
-
Salinity: 1.020–1.025
-
Minimum Tank Size: 75+ gallons
Elegant, colorful, and hardy, the Hawaiian Blue Stripe Butterfly Fish is a standout species for experienced marine hobbyists seeking a visually striking reef centerpiece.




