Common name: Pyramid Butterflyfish

Hemitaurichthys is a genus of butterflyfishes known for their distinctive triangular swimming pattern, resembling a pyramid. They are popular in the reef aquarium hobby due to their peaceful nature and striking appearance. Members of this genus are generally hardy and can adapt to a variety of tank conditions, but they require a well-established aquarium with plenty of swimming space and a diet rich in marine algae and meaty foods. They are also known for their role in controlling algae within the reef ecosystem.

1. Common name: Many-spined butterflyfish

   Scientific name: Hemitaurichthys multispinosus
2. 
   Common name: Pyramid butterflyfish

   Scientific name: Hemitaurichthys polylepis
3. Common name: Thompson's butterflyfish

   Scientific name: Hemitaurichthys thompsoni
4. 
   Common name: Black pyramid butterflyfish

   Scientific name: Hemitaurichthys zoster