One Spot Blenny



The One Spot Blenny is also known as Big Spot or as Triplespot Blenny. Its body is a mix of light brown and dark green, with white spots. The belly is light tan to cream hue, while the dorsal fin features some red and yellow accents. An established 30 gallon or greater aquarium that has multiple levels of swimming and plenty of rocks is an ideal environment. It isn't typically aggressive unless tankmates appear to have the same form as the One Spot Blenny. It is best to keep one by itself unless it is kept inside a tank that is larger or they are a mated pair. It will perch and sway from rock to rock, looking for small algae to feed on.   It is believed that the One Spot Blenny is best found in well-established aquariums with a lot of algae that it can consume. This diet is supplemented by vegetables, Spirulina, herbivore preparations, and other vegetable matter.   Approximate Purchase Size: 1" to 2"
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General information About One Spot The One Spot Blenny's physique is mottled green as well as darker brown, with spots of white. The belly is light tan to a cream hue while the dorsal part features highlights of red and yellow. An established medium-sized aquarium or bigger with several swimming levels and plenty of rocks is an ideal environment. This saltwater fish is generally not aggressive unless tankmates have the same design and similar shape to it. It is best to keep one by itself unless it is kept within a bigger tank, and the two form a pair. It will perch and sway between live rock looking for microalgae that it can consume.
Large, Medium, Small
6 lbs


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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.