Two-spot basslet
Pseudanthias bimaculatus
A vivid reef basslet with two bold spots that set it apart from the crowd.

About
The two-spot basslet (Pseudanthias bimaculatus) is one of the more distinctive members of the anthias group, identified by the pair of contrasting spots that give it its common name. Like most anthias, it hails from Indo-Pacific reef environments, and its association with Réunion places it within the western Indian Ocean, where it likely inhabits reef slopes and drop-offs alongside other schooling planktivores. In the wild, anthias typically form loose aggregations, often hovering in the water column to pick off passing zooplankton, and the two-spot basslet follows that general pattern. As with virtually all Pseudanthias species, it is protogynous. Females can transition to males when a dominant male is absent, so group dynamics matter in the aquarium. Keeping a small group is generally more successful than a lone individual, which can pine and refuse food. This species is tagged as intermediate in care, which is honest for the genus. Anthias are sensitive to water quality and can be finicky feeders that need multiple small feedings daily to thrive. Experienced reef keepers comfortable with demanding planktivores will find this an rewarding fish, but it is not the best first anthias for someone still learning the ropes.
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Good tank mates
Species that tend to coexist peacefully with Two-spot basslet
Frequently asked questions
- What water parameters does the Two-spot basslet need?
- The Two-spot basslet does best with a temperature of 72–82°F, a pH of 8–8.4.
- Is the Two-spot basslet aggressive?
- The Two-spot basslet is generally peaceful and suits a community tank with similarly calm tankmates.
- What does the Two-spot basslet eat?
- The Two-spot basslet is a carnivore. It needs a meaty, protein-rich diet of frozen or live foods.
- Is the Two-spot basslet reef safe?
- The Two-spot basslet is generally considered reef safe.