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Suggested Tank
30+ gallons
Max Size
5 inches
Difficulty
Temperament
Description
The Lawnmower Blenny, also known as the Jeweled Rockskipper Fish, is a fascinating, comical, and helpful addition to any saltwater aquarium. It has a long, slender body with various spots and patterns that help it blend into the rocky surroundings. It is well-known for its algae-eating habits, which makes it extremely beneficial for maintaining a clean tank.
Reef Safe?
Yes, the Lawnmower Blenny is considered reef safe. It will not harm corals or invertebrates but will eat small amounts of algae off the rocks and glass.
Environment
The Lawnmower Blenny prefers a tank with plenty of live rock for grazing and hiding. It requires good water conditions with stable temperatures. It is a saltwater fish and needs a specific gravity between 1.020 and 1.025.
Behavior
The Lawnmower Blenny is a peaceful fish that spends most of its time on the bottom of the tank, perched on rocks or the substrate. It is known for its ability to blend into its surroundings and can change its color to match the environment. It is a solitary creature and prefers to be alone or with one other of its kind.
Owner Reviews
Ben Townsend
@BenTownsend593
I love this fish! So strange looking and definitely an attention getter
James
@James321
An almost must-have for a tank. They're great at keeping algae (somewhat) under control. If your tank blooms like mine does, keep an eye out for "kiss" marks on your glass; I laugh every time I see them. Though mileage may vary, my Lawnmower Blenny is very active and is constantly darting I and out of its hiding spots.
Jared Bristol
@Stormriven
Bought this fish for algae management when I had a smaller tank. It did an excellent job in the beginning but once it realized it got a free delivery of Mysis and nori everyday it started slacking on its duties. Still a great fish to have in the tank and still serves a purpose. They have a funny personality as well.
Corbin Swinney
@CorbinSwinney17506
This is an awesome fish especially for algae control and they usually have a really funny personality. Super chill
Christian
@Christian27484
The best algae eater I’ve ever purchased. Fish primarily eats algae in the tank and is usually the last to get any food when the tank is fed primarily due to him being extremely shy. Anytime someone walks into the room he hides even after months of having him.
