Shipping is $42.79. Fish orders over $599 and coral orders over $399 ship free. Fish and coral ship in separate boxes, and we confirm your delivery day with you before anything ships.
Pickup available at 46 Northwest 36th Street
Usually ready in 2 hours
Carefully Selected
Scheduled Delivery
Live Arrival Covered
Description
Lawnmower Blenny
Care level
Beginner
Temperament
Peaceful
Reef safe
Yes
Typical for this species. Ask us if you're unsure.
Transform Your Tank with Nature's Most Diligent Algae Crew
Looking for a hardworking reef tank ally... The Lawnmower Blenny is one of the saltwater aquarium hobby's most beloved and practical additions, a species that earns its keep every single day. With expressive, periscope-like eyes, a mottled brown-and-white pattern that mimics live rock perfectly, and an unmistakable personality, this specimen is as visually engaging as it is functional. It's the rare combination of utility and character that keeps experienced aquarists coming back for one in every build.
Reaching up to 5 inches at full maturity, the Lawnmower Blenny spends its days grazing methodically across rockwork and glass, cropping filamentous and hair algae with remarkable efficiency. It perches, darts, and hops across the aquascape with a curious, almost comical energy that makes it a constant source of activity in the home aquarium. For aquarists who want a specimen that genuinely interacts with its environment, and solves a real problem while doing it, this species delivers every time.
QUICK STATS & CARE GUIDE
Common Name: Lawnmower Blenny (Jeweled Blenny, Sailfin Blenny)
Current Size: 2 to 3 inches (juvenile to sub-adult)
Care Level: Easy, ideal for beginner to intermediate reef keepers
Temperament: Peaceful; may show aggression toward other blennies or similar bottom-dwelling species
Diet: Primarily herbivorous, grazes on microalgae, spirulina-based prepared foods, and algae sheets (nori); supplement if natural algae is insufficient
Reef Safe: Yes, with caution in low-nutrient systems where algae is scarce, as it may nip at coral polyps when underfed
Water Conditions: 72 to 78°F | Salinity 1.023 to 1.025 | pH 8.1 to 8.4 | Nitrates below 20 ppm
WHY BUY FROM THE CORAL BOUTIQUE?
Every Lawnmower Blenny we ship from The Coral Boutique is ethically sourced, individually quarantined, and fully conditioned, eating prepared foods confidently before it ever leaves our facility. When you buy a Lawnmower Blenny online through us, you're getting a specimen that's healthy, acclimated, and ready to thrive in your saltwater tank from day one.
Fish Health
Our fish are selected with appearance, behavior, and feeding response in mind before being listed. We aim to offer healthy, alert specimens for established saltwater systems.
Compatibility
Please confirm this fish is compatible with your tank size, current livestock, temperament needs, and reef goals before ordering. If you are unsure, contact us before checkout and we’ll help you choose responsibly.
Shipping & Pickup
Livestock ships Monday through Wednesday. We confirm a delivery day with you before your order goes out, and we will hold it if the weather is bad or an animal needs more time in quarantine.
Fish orders over $599 qualify for free shipping. Coral orders over $399 qualify for free shipping. Free same-day Miami pickup is available at 46 NW 36th St and is usually ready in 1–2 hours.
Live Arrival Guarantee
Eligible livestock orders are covered by our Live Arrival Guarantee. Photograph the animal in its sealed bag before you open anything, then email that photo with your order number within two hours of delivery. Our team reviews every claim and gets you an answer within one business day. Failed delivery attempts, refused packages, or missed delivery windows may void coverage.
Acclimation
Acclimate fish carefully and introduce them into a stable, established saltwater aquarium. Match temperature and salinity slowly, keep lights low during introduction, and monitor behavior closely after release.
Photography
We photograph our fish in house to show their coloration and patterning as clearly as we can. Colors can look different under your own lights.
When a fish in our WYSIWYG collection has one in stock, the photo is the exact fish you receive. Other fish listings use a representative photo of the species and the quality you can expect. Every fish is carefully selected for health, coloration, and temperament before shipping.
SELECTED FOR ESTABLISHED SYSTEMS
Healthy Fish Start With Careful Selection.
Every fish is selected with color, behavior, and compatibility in mind. We focus on livestock that makes sense for real reef systems, not just impulse purchases.
If you have questions about temperament, tank size, or reef compatibility, contact us before ordering.
Watch before you order
How ordering and shipping work
Ship days, free shipping, the Live Arrival Guarantee and shipping protection in just over a minute.
Scheduled Shipping
Fish ship Monday through Wednesday only to avoid weekend delays.
Simple Claim Window
Sealed bag photo, emailed within 2 hours of delivery. Natural or white light.
Free Miami Pickup
Pick up locally from our NW 36th St showroom.
INTRODUCTION MATTERS
Give New Fish a Stable Start.
Successful fish introductions depend on stable water parameters, proper acclimation, compatible tankmates, and low-stress handling. Take your time, keep lights low, and observe behavior closely after release.
