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Lawnmower Blenny
Salarias fasciatus
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📖 Wikipedia / Wikimedia Commons
Excellent algae grazer that methodically scrapes film algae and diatoms off glass and rocks. Camouflaged brown mottled pattern. Needs a tank with sufficient algae growth — may nip at large-polyp corals if underfed. Supplement with algae sheets.
CARE
Beginner
AGGRESSION
Low
MAX SIZE
5"
⚠ ADD WITH CAUTION
· Tank needs 1 more month of maturity
💰 BUDGET PICK
VALUE
★★★★★
WOW FACTOR
★★★★★
TYPICAL PRICE
~$15–25
Tireless algae eater. Keeps glass and rocks clean. Unbeatable value as a biological algae control.
⚠️
MAY NIP SOFT CORALS
Can nip at soft corals and zoanthids if underfed. Keep well fed with algae-based foods.
🧹 CLEANUP CREW — actively maintains water quality and algae control
🌊 WATER PARAMS
ParamStatusIdeal
TemperatureOK (78.4)72–82 °F
SalinityOK (1.025)1.023–1.027 sg
pHOK (8.22)8.1–8.4
Nitrate NO₃⁻OK (8.0)0–30 ppm
Tank Compatibility
Ocellaris ClownfishCompatible
Royal GrammaCompatible
Tailspot BlennyCaution
Firefish GobyCompatible
Yellow TangCompatible
Six Line WrasseCompatible
Orchid DottybackCompatible
Torch CoralCaution
Hammer CoralCaution
Acropora SPSCompatible
Duncan CoralCompatible
Skunk Cleaner ShrimpCompatible
Turbo SnailCompatible
Blue Leg Hermit CrabCompatible