Common name: Roundheads

Plesiopidae, commonly known as Roundheads or Prettyfins, is a family of marine fish found in tropical and subtropical waters. They are characterized by their rounded heads and vibrant colors, which make them popular among aquarists. Members of this family are generally peaceful and can coexist with a variety of other fish species in a community tank. They are also known for their interesting behavior and are often seen perching on coral branches or rockwork. Plesiopidae species are typically small to medium in size and can be a good choice for those looking to add some color and activity to their reef aquarium.

1. 
   Common name: Yellowdevilfish

   Scientific name: Assessor flavissimus
2. Common name: squatter

   Scientific name: Assessor macneilli
3. Common name: Randall's Assessor

   Scientific name: Assessor randalli
4. 
   Common name: Comet

   Scientific name: Calloplesiops altivelis
5. Common name: Comet

   Scientific name: Calloplesiops argus
6. 
   Common name: Northern blue devil

   Scientific name: Paraplesiops poweri