The body of the Blackeye goby (Rhinogobiops nicholsii) is usually a light beige to olive in color with darker spots and mottling. The body coloration and its spots can change…
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Pot-bellied seahorses, as the name suggests, have a large swollen belly. Like other seahorses, this species comes in a wide range of colors - brown, yellow, gray, white, orange or…
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Many aquarists who encounter this species in pet stores are unaware that an engaging inch-long juvenile can quickly grow over a foot in length, devouring any size-appropriate tank mates in…
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Described for science in 1903, this species was imported by the Umlauff Pet Store in Hamburg, Germany in 1904, making it one of the earliest cichlids kept in aquariums. Despite…
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The "false eye" on the flanks of this fish is much larger than the real one in its head. This is a classic example of a distraction pattern which misleads…
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While many angelfish have broad ranges in the Pacific or Atlantic, others are found in only a few locations. One of the more famous is this beautiful species, named for…
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Of the three Caribbean seahorse species found in US waters, this one has the smallest distribution, being absent from the Gulf of Mexico. In the US, it is found only…
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The 200 or so species of eels in the moray family have long fascinated humans. In the time of Julius Caesar, Romans kept their local species as status symbol pets…
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In contrast to many other angelfish, which live in pairs, swallowtail angels, in the genus Genicanthus live like fairy basslets, with a dominant male guarding a harem of females. As…
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Named for its profile reminiscent of a French military cap, this fish is also known as the Humphead, and Maori wrasse (for its intricate cheek designs that look tattooed), and,…
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