Harlequin Bass



The Harlequin Bass has a unique striking yellow and black pattern on the ventral end, with white and black mottling on the dorsal side. They are very tough and are a good choice for those who are just beginning. A 75-gallon or larger aquarium that has plenty of hiding spots will provide a comfortable setting. The Harlequin Bass grows and matures it could be prey for smaller fish or smaller crustacean tank friends. While they can be a bit bossy on tank mates of smaller sizes however, they're generally not too aggressive with species that are not similar to them. They don't usually like the other Sea Basses or even fish that live in the bottom and are in the same area and therefore keep a watch on them when mixing similar fishes, or those which share the same territory. The ideal is to have only one Harlequin Bass per tank unless a bonding pair is available.   A tough species that is hardy, the Harlequin Bass needs a diet consisting of different chopped meaty and live items as well as frozen food items.   Approximate Purchase Size: Medium: 2" to 3"; Large 3" to 4-1/2"
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General information about Harlequin Basslet The Harlequin Bass is a unique striking black and yellow mottled color on the ventral part, and white and black mottling along the dorsal portion. They are very hardy and can be a fantastic choice for those who are just beginning. A larger or 30 gallon aquarium that has plenty of hiding spots will provide a safe habitat. In the course of time, as the Harlequin Bass grows and matures it can be prey for smaller fish or smaller crustacean tankmates. Although they can be aggressive over smaller tank mates they're not usually particularly aggressive towards species from different species. They don't usually enjoy interacting with other Dwarf Sea Basses, or even fish that live in bottoms in the same area and therefore keep an eye on them while mixing fish that are similar or who share the same habitat. In the ideal situation, One Harlequin Bass per tank is suggested unless a bonded pair is available.
Large, Medium, Small
6 lbs


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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.