Molly Miller Blenny - Atlantic

Scartella cristata

(0 Reviews)

Molly Miller Blenny - Atlantic

Molly Miller Blenny - Atlantic

Scartella cristata

(0 Reviews)

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Molly Miller Blenny - Atlantic Care Facts

Care Level: Moderate
Temperament: Peaceful
Diet: Omnivore
Origin: Caribbean
Acclimation Time: 2+ hours
Reef Safe: Yes
Minimum Tank Size: 30 gallons
Max Size: 4 inches

The Molly Miller Blenny (Scartella cristata) is a combtooth blenny found among rocky reefs in the Caribbean. It spends its time scavenging for small crustaceans or algae. While typically peaceful, they can be aggressive to fish with a similar body shape, so it is recommended to keep one per tank. It should be fed vitamin-enriched crustaceans, with occasional algae or seaweed mixed in. 


Molly Miller Blenny Care Guide


The Molly Miller Blenny (Scartella cristata) is a fascinating addition to saltwater marine aquariums due to its unique characteristics and adaptability. This product description will provide detailed insights into keeping the Molly Miller Blenny in your saltwater aquarium, covering various aspects essential for successful care.


Molly Miller Blenny Habitat


The Molly Miller Blenny is a hardy, small marine fish species native to the Western Atlantic Ocean. It inhabits rocky crevices and shallow reef areas, often close to coral formations and submerged rocks. Their natural habitat provides plenty of hiding spots, making them well-suited for reef and marine aquariums.


Molly Miller Blenny Reef Compatibility


The Molly Miller Blenny is considered reef-safe, making it a suitable choice for reef aquariums. These blennies rarely exhibit any destructive behavior towards corals or other invertebrates so they can coexist harmoniously with your reef inhabitants. They will also eat pest anemones such as Aiptasia and Glass Aiptasia.


Molly Miller Blenny Size and Lifespan


This blenny species typically reaches a maximum size of about 4 inches (10 cm) in captivity. When well-cared for, they can have a lifespan of up to 5-8 years, making them a long-term addition to your marine aquarium.


Molly Miller Blenny Diet in Captivity


The Molly Miller Blenny is an omnivorous feeder in captivity. Their diet should consist of various foods, including high-quality flake or pellet food, frozen foods like brine shrimp and mysis shrimp, and occasional live food such as copepods and amphipods. Offering a diverse diet will help maintain their health and vibrant colors.


Molly Miller Blenny Aquaculture and Availability


The Molly Miller Blenny is less commonly aquacultured than some other marine species, but they are periodically available to hobbyists through reputable sources. It's advisable to check with your preferred marine livestock supplier or local fish stores for availability.


Molly Miller Blenny Compatibility with Other Fish and Invertebrates


Molly Miller Blennies are generally peaceful and can coexist with various tank mates. However, they may exhibit territorial behavior toward conspecifics (other Molly Miller Blennies). Keeping only one Molly Miller Blenny per tank is recommended unless you have a large aquarium with multiple hiding spots.


Molly Miller Blenny Sexual Dimorphism


Sexual dimorphism in Molly Miller Blennies is minimal, and distinguishing between males and females based on visual characteristics can be challenging.


Molly Miller Blenny Juvenile to Adult Coloration Changes


As juveniles, Molly Miller Blennies have a bright yellow or greenish-yellow body color with a series of vertical blue lines running along their sides. As they mature, the blue lines may become less prominent, and their coloration may change slightly, but they generally retain their vibrant appearance throughout their lives.


Molly Miller Blenny Temperament


Molly Miller Blennies are known for their peaceful and curious nature. They are often seen perching on rocks and watching the activity in the aquarium. Their endearing behavior adds a touch of personality to your marine aquarium.


Molly Miller Blenny Tank Requirements


To ensure the well-being of your Molly Miller Blenny, it's essential to provide the following tank conditions:

  • Minimum Aquarium Size: A tank with a minimum capacity of 20-30 gallons is suitable for one Molly Miller Blenny. Larger tanks can accommodate multiple individuals.
  • Water Conditions: Maintain the following parameters:       
    • pH: 8.1-8.4
    • Salinity: 1.020-1.025
    • Water Temperature: 72-78°F (22-26°C)
    • Water Flow: Gentle to moderate water flow is ideal, replicating their natural habitat conditions.

Molly Miller Blenny Common Names


The Molly Miller Blenny may also be known as "Scaly Blenny" or "Jeweled Blenny."


Five Compatible Tank Mates

  • Firefish Goby (Nemateleotris magnifica): Their  vibrant colors and peaceful nature make them ideal tank mates for Molly Miller Blennies.
  • Royal Gramma (Gramma loreto): This strikingly colored fish is beautiful and peaceful, making it a great companion in your marine tank.
  • Yellowtail Damsel (Chrysiptera parasema): These small, colorful damsels are generally well-tolerated by Molly Miller Blennies.
  • Cleaner Shrimp (Lysmata amboinensis): Adding a cleaner shrimp provides a unique aesthetic and practical benefit by helping keep your aquarium clean.
  • Corals such as Zoanthids and Soft Corals: Molly Miller Blennies are generally reef-safe and can coexist with various coral species.

Why Buy the Molly Miller Blenny from


When purchasing a Molly Miller Blenny, choosing a reliable and reputable supplier is essential. offers several advantages for acquiring these fascinating marine fish:

  • Quality Assurance: is committed to providing healthy, high-quality marine livestock, ensuring your Molly Miller Blenny arrives in top condition.
  • Expert Guidance: Their team of experts can provide valuable information and guidance on the care and maintenance of Molly Miller Blennies, enhancing your success in keeping them.
  • Diverse Selection: offers a wide selection of marine fish, making it convenient to find compatible tank mates and enhance the biodiversity of your aquarium.

In conclusion, the Molly Miller Blenny is an excellent choice for saltwater marine aquarium enthusiasts. Its peaceful temperament, reef-safe status, and captivating appearance can add beauty and charm to your aquatic environment. By adhering to the recommended tank requirements and providing a varied diet, you can enjoy the company of these intriguing fish for years to come. For a reliable source, offers the assurance of quality and expert support in your Molly Miller Blenny acquisition.

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