Lawnmower Blenny

    From Aqua Guide, the free encyclopedia

    Lawnmower Blenny

    Lawnmower Blenny

    Salarias fasciatus

    bottom swimmerNon-nipperCommunity safeReef Safe
    Temperature
    24–27 °C
    Salinity
    1.02 – 1.026 SG
    Min. tank size
    110 L
    Lifespan
    2-6 years
    Diet
    herbivore
    Care level
    moderate
    Quick Facts
    Scientific classification
    Scientific Name:Salarias fasciatus
    Family:Blenniidae
    Origin:Indo-Pacific reefs
    Care Characteristics
    Care Level:moderate
    Diet:herbivore
    Max Size:14.00 cm
    Water Type:marine
    Temp Group:tropical
    Reef Safe:Reef Safe
    Temperament:peaceful
    Min Group:Can be kept alone
    Varieties:No cultivated strains — the wild-type fish is what is sold, and its olive-to-brown mottling with dark bars and white spots varies constantly with mood and camouflage rather than between individuals. Georges Cuvier described the species as Salarias quadripennis, later judged a junior synonym of Bloch's 1786 name. Several other algae-grazing blennies reach the trade and are worth knowing. Salarias ramosus, the starry blenny, is similar with more pronounced spotting. Atrosalarias fuscus, the black sailfin blenny, is dark and shy. Ecsenius species — the bicolor and midas blennies among them — are smaller, and the midas swims more freely than most blennies. For serious hair algae, none of them are a substitute for nutrient control, a tang or a sea hare.
    Lifespan:2-6 years

    Quick Tips

    • Bioload:Low
    • Min Tank:110 L
    • Substrate:Live rock with film algae to graze
    • Plant Safe:Yes
    • Filtration:Moderate (reef conditions)

    Lawnmower Blenny (Salarias fasciatus) is a species of fish in the family Blenniidae. It is native to Indo-Pacific reefs. The lawnmower blenny is bought to eat algae, and its actual diet is more complicated than the name suggests. Despite the common name, it functions primarily as a detritivore: plant material makes up only about 15 per cent of its diet, and the rest is organic debris and small organisms scraped off the rock. It does graze — it works surfaces continuously and does reduce film algae — but a keeper expecting a tank cleared of hair algae will be disappointed, and a keeper relying on the tank to feed it will starve it. It reaches 14 cm, has eyes set high on a blunt head, and changes colour to hide from predators.

    Compatibility

    Temperament
    peaceful
    Keep in
    Can be kept alone
    Swims
    bottom
    Fin nipper
    No
    Delicate fins
    No
    Reef
    Reef Safe