Blackline Blenny, Captive-Bred



The Blackline Blenny is also known as the Blackline Fangblenny, and is bred in captivity in the USA. All blennies in the Meicanthus genus possess a venomous bite which is used as a defense in the event of being taken in by larger fish. When they bite the inside of the fish's mouth they are then spit out and are spared the loss of their lives. The fish are green and yellow in color and have a number of black marks that are lateral to the fish. The non-venomous Red Sea Mimic Blenny (Ecsenius gravieri) has evolved to mimic the appearance of this species. This aids in the survival of the species because predatory fish often do not bother them. This is why the Blackline Blenny is a peaceful fish and makes a stunning feature in any community aquarium. Usually found in crevices and rocks on the bottom of their habitat the Blackline Blenny requires an aquarium minimum of 10 gallons and scattered rocks for perching and hiding. They are usually peaceful in the wild and are considered to be reef-safe.   Diet of the Black-Lined Blenny needs to include meaty items like vitamin enriched brine and mysis shrimp, chopped pieces of shrimp and fish, and high quality flake food.   Approximate Size of Purchase Small 1 1/2" up to 2 1/2" Medium 1 1/2" up to 2 1/2"
  • Description
  • Additional Information
  • Reviews
Blackline Blenny Information The Blackline Blenny, Meicanthus nigrolineatus, features a small blue and yellow body with a thick black horizontal line going from its eye to its tail. They are tough and can be kept alongside other peaceful fish as well as other blennies, dartfish, or gobies. They are also reef safe fish. Diet of the Blackline Blenny This blenny should be positioned toward the bottom of the tank seeking out algae to feast during meals. The diet should include meaty items like mysis shrimp, vitamin enriched brine shrimp and mysis along with spirulina, seaweed, marine algae, and algae-based meals three times a day.
Large, Medium, Small
6 lbs


There are no reviews yet.

Be the first to review “Blackline Blenny, Captive-Bred”

Your email address will not be published. Required fields are marked *

Helpful Questions From Clients
Frequently Asked Questions
Is hiring a professional necessary to set up a saltwater aquarium?

As a general rule, a larger custom aquarium might require installation by a professional. However, a kit from our online fish store is relatively affordable and beginner friendly. That means you should have no problem setting it up yourself.

Which saltwater aquarium fish should you choose when starting out?

Consider a yellow tang fish. This popular saltwater aquarium fish does a great job of coexisting with other types of fish you’ll find in our online fish store.

How does a saltwater aquarium differ from a freshwater one?

Saltwater aquariums require a bit more maintenance and monitoring than freshwater tanks. Different fish require different levels of salinity, pH tolerances, and temperature requirements. They also require specialized pumps, filters, and other equipment that can handle salt. We can guide you through everything you need to know to set up a healthy, thriving reef tank.

Do fish in a saltwater aquarium swim in a school?

That depends on the species. However, if it’s a fish that swims in a school in the wild, they’ll do the same in an aquarium. Some fish that swim in schools include the green and blue chromis, cardinalfish, and dartfish, for example. When ordering from an online fish store, make sure you do your research on how specific fish species behave to ensure they’ll school (or at least coexist) with your current fish.

Is the effort required to maintain a saltwater aquarium worth it?

Yes! Many aquarists dream of owning thriving saltwater aquariums. You have a tiny piece of the ocean in your home, featuring magical and exotic fish that can only survive in saltwater.