Ruby Red Dragonet

The Ruby Red Dragonet is a relatively recent addition to the marine aquarium hobby, having been scientifically described only in 2015. It is a strikingly beautiful small fish that displays a rich ruby-red to deep crimson coloration across its entire body, punctuated by fine patterns and markings that create an almost jewel-like appearance. Males tend to be more intensely colored and possess an elongated first dorsal spine, while females are slightly paler with a shorter dorsal fin. At a maximum size of just 2 inches, this is one of the smallest dragonet species available.

Like all dragonets, the Ruby Red Dragonet is a specialized micro-predator that feeds almost exclusively on tiny copepods and amphipods in the wild. This dietary specialization is the primary challenge in keeping this species, as it requires a well-established aquarium with a thriving population of live microfauna. A mature tank of at least six months old with abundant live rock is essential to support the copepod population necessary to sustain this tiny fish. Captive-bred specimens, while still uncommon, are more likely to accept frozen foods.

Despite its demanding dietary needs, the Ruby Red Dragonet is completely reef-safe and will not harm any corals, clams, or other invertebrates. It spends its days hopping across the rockwork and substrate, methodically picking at tiny organisms invisible to the naked eye. Its small size means it can thrive in smaller nano reef systems of 20 gallons or more, provided the copepod population is adequate. A connected refugium is highly recommended to maintain a steady supply of live food. Only one male should be kept per tank, though a male-female pair can coexist peacefully.