The Yellow Assessor, A New Captive Bred Fish from ORA

The Yellow Assessor, A New Captive Bred Fish from ORA

Introducing the Captive Bred Yellow Assessor Fish (Assessor flavissimus) from ORA—a striking addition to marine fish only aquariums and reef tanks. The Yellow Assessor fish are easy to care for, making them suitable for beginners and experienced hobbyists alike. They thrive in water temperatures between 72°F to 78°F (22°C to 26°C) and pH levels between 8.1 to 8.4. Providing hiding spots among live rock formations is essential, along with regular water changes and proper filtration.

Yellow Assessors have a lifespan of around 5 to 7 years with proper care and can grow up to 2.5 inches (6.4 centimeters). They are peaceful and can coexist with other calm fish and invertebrates, though caution is advised when pairing with larger or aggressive species.

These fish are reef-safe, meaning they won't harm corals. They have a gentle demeanor and non-invasive feeding habits, making them suitable for reef aquariums. Their diet primarily consists of small meaty foods like frozen mysis shrimp, brine shrimp, and finely chopped seafood.

Yellow Assessors exhibit interesting social behavior, often forming small groups or pairs within the aquarium. They're known for their inquisitive nature, constantly exploring their surroundings.

Yellow Assesors are not a member of the Dottyback family, but are similar to them in many ways. Assessor flavissimus is native to Australia and is a member of the Plesiopidae (Longfins) family that includes the Marine Betta (Comet). They are not nearly as aggressive or territorial as the Dottybacks, and feed on small zooplanktonic crustaceans in the wild.

They are fascinating fish that exhibit unusual behavior. In nature, as well as in the reef tank, they can often be found swimming upside down. This is an adaptation used in their habitat where they’re usually found in caves or under ledges. Creating a similar habitat in the aquarium will allow them to exhibit this unique swimming behavior.

The Captive Bred Yellow Assessor is a vibrant fish with with a lot of personality and we are happy to see yet another captive bred fish make its way in the aquarium hobby. 

The Yellow Assessor is now available at Aquarium Specialty.



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