At the extreme eastern tip of its range, Acanthurus leucosternon meets with another closely related species: Acanthurus nigricans, the White Cheek, Whitecheeked, or Goldrim Surgeonfish. In this part of its range, the White Cheek Tang is quite common. The solitary Acanthurus leucosternon (Powder Blue Tang) seems to often have no other option than to breed with or join in spawning with Acanthurus nirgricans (White Cheek Surgeonfish). This leads to quite a lot of hybrid between the two species in that particular area.
RABBITFISHES Volume 20, Number 4
A preview of articles and images in the just-published issue of CORAL, The Reef & Marine Aquarium Magazine, May/June 2023.
We’ve now discovered this interesting, high-density, patchwork colonization of substrates by Galaxea fascicularis in several different and distant locations. It may be that this is a common occurrence throughout the Coral Triangle.
Swimming over a very healthy reef next to a hydrothermal vent, we couldn’t help to notice how healthy the corals were. We took some water samples and found few off parameters.