Ember Blenny (Cirripectes Stigmaticus) saltwater aquarium fish portrait

The Ember Blenny, Cirripectes stigmaticus, is an elongated combtooth blenny cloaked in dark brown and overlaid with a scarlet-red reticulate pattern that breaks into spots, wavy lines, and vertical streaks toward the tail. A thin yellow ring encircles the pupil, adding contrast to an otherwise somber face. Large specimens can darken further, appearing deep green to nearly black, and males tend to grow larger and show stronger color than females, with additional color shifts tied to breeding. Adults reach roughly 4 inches, and the species ranges widely through the tropical Indo-West Pacific.

In the wild, this blenny occupies shallow reef flats, rocky and coralline structures, and the upper edges of reef slopes where coral and algal growth are dense. A mature aquarium of at least 30 gallons suits an adult, and larger systems give the fish more grazing surface and reduce friction with rock-dwelling neighbors. Build the aquascape around abundant established live rock carrying natural algal film, with open perches, caves, and tight crevices for resting and retreat; a sand substrate rounds out the setup. Provide stable reef conditions with adequate water movement and dependable filtration, and fit a tight-fitting hood or lid, since blennies are capable jumpers. A calm environment matters as much as the rockwork, because a harassed specimen will hide rather than graze.

Care is rated moderate, largely because long-term success depends on maintaining a genuinely algae-rich feeding regimen rather than on any difficulty with water quality itself.

Field and biological references describe Cirripectes stigmaticus as a small herbivore that grazes microalgae, with additional accounts citing filamentous algae, protozoans, and detritus scraped from hard surfaces. That grazing habit should anchor the captive diet. An established aquarium with visible algal growth supplies constant foraging opportunity, supplemented by marine-algae and spirulina-based flakes, pellets, dried algae sheets, and frozen herbivore preparations.

Most specimens also accept small meaty items, which explains the omnivore label the species carries in the trade. Mysis shrimp, enriched brine shrimp, finely chopped crustacean flesh, krill, amphipods, and copepods are all taken readily and help maintain condition, but they should supplement rather than replace plant matter. Feed twice daily in portions consumed within a few minutes, increasing frequency if a fish begins to thin out. Individuals kept without sufficient natural or supplemental algae tend to lose condition slowly, so monitor body depth closely during the first weeks after introduction.

Marine Algae Flakes Spirulina Pellets Dried Algae Sheets Frozen Herbivore Preparations Mysis Shrimp Enriched Brine Shrimp Krill Copepods
This is a rock-associated grazer that spends much of the day perched on hard surfaces, surveying its surroundings, cropping algae, and ducking into crevices when startled. Activity is unhurried and close to the reef structure rather than in open water, and a well-settled specimen will establish a favored set of lookout points. Peaceful by nature, it coexists well with unrelated tankmates of similarly mild disposition. Aggressive or strongly territorial fish are poor company, as they can monopolize the rockwork and keep the blenny from feeding.

Conspecifics and other similar-looking blennies are the main source of conflict, and territorial disputes are most likely in smaller aquariums. Keeping a single specimen is the safest approach; if a second is attempted, use a large system and introduce both fish at the same time. The Ember Blenny is reef safe and is commonly maintained in coral-dominated systems, where it generally ignores sessile invertebrates. Individual fish may occasionally pick at benthic organisms, coral polyps, or clam mantles when algae and other foods run short, so consistent feeding and healthy grazing growth keep behavior predictable. Documented predation on shrimp, crabs, snails, or small fish has not been reported for this species.

FAQ

Frequently Asked Questions

About the Ember Blenny

  • What tank size and aquascape does an Ember Blenny need?
    Plan on a mature aquarium of at least 30 gallons for an adult, with larger systems preferred for grazing space. Furnish it with established live rock carrying algal growth, open perches, caves, and crevices, plus stable filtration, water movement, and a secure lid.
  • Is the Ember Blenny strictly herbivorous?
    Biological references classify it as herbivorous and identify microalgae as a principal natural food, though aquarium specimens readily take small meaty items as well. Keep the diet strongly algae-focused while offering varied prepared foods.
  • Can an Ember Blenny be kept in a reef aquarium?
    Yes. It is reef safe and commonly kept in coral systems, but a well-fed fish with ample algae to graze is far less likely to sample coral polyps, clam mantles, or other benthic organisms.