Blennies
Blennies are popular aquarium fish, and for good reason. They are peaceful, colorful, and many are downright helpful. For example, the aptly named Lawnmower Blenny will keep your green algae well trimmed and presentable. With the exception of Fang Blennies, Blennies are totally reef safe- in fact a reef environment is really best for them because they can be shy and the intricate rockwork of a reef provides ample hiding spaces. They are omnivores and should be fed a varied diet of frozen or live foods and plant matter. Blennies don't have teeth or functional jaw, so food must be small enough for them to swallow whole.
Blennies are often confused with Gobies, but there is an easy way to tell the difference. Gobies have two distinct dorsal fins, Blennies have a single dorsal fin that runs the length of their body. Also, Gobies' pelvic fins are fused to form a sucker, similar to Remoras.
Ecsenius stigmatura is a Blenny from the Western Pacific. It occasionally makes its way into the aquarium trade. A coppery-coloured fish with a distinct blackish spot at the base of the tail. It grows to a size of 6cm in length.
Pholidichthys leucotaenia is a Blenny from the Western Central Pacific. It occasionally makes its way into the aquarium trade. It grows to a size of 34cm in length.
Affectionately known as the Lawnmower Blenny, Salarias Fasciatus is a popular marine aquarium fish species in Australasia. Named for its propensity to consume algae growth from rocks and glass, the Lawnmower Blenny is generally regarded as compatible with most other marine fish species and as a group with other lawnmower Blennies.