Hamlets of the Hypoplectrus genus are a small group of colorful fish from the Carribean Sea. Hamlets come in a few very bright yellow or blue colors and although they are affordable and readily available, this genus is still not as well known in the aquarium hobby as they deserve. Aside from their small size and bright colors, Hamlets have great personalities and a mild disposition. The only thing to watch out for in an aquarium environment is that their sizeable mouth will easily slurp down most shrimp and small fish, much as a larger hawkfish would do. The other interesting thing to note about hamlets is that they are simultaneous hermaphrodites which produce egg and sperm at the same time. So when they spawn, Hypoplectrus hamlets take turns being the dominant male or submissive female partner using color and posture to advertise which role they will take during a particular spawning ascent. The video above clearly shows the several spawning ascents that hamlets make every evening and it gives good footage of several really beautiful species including the golden hamlet, H. gummigutta and the indigo hamlet, H. indigo.
Jake Adams has been an avid marine aquarist since the mid 90s and has worked in the retail side of the marine aquarium trade for more than ten years. He has a bachelor’s degree in Marine Science and has been the managing editor of ReefBuilders.com since 2008. Jake is interested in every facet of the marine aquarium hobby from the concepts to the technology, rare fish to exotic corals, and his interests are well documented through a very prolific career of speaking to reef clubs and marine aquarium events, and writing articles for aquarium publications across the globe. His primary interest is in corals which Jake pursues in the aquarium hobby as well as diving the coral reefs of the world.