Rolland’s Damselfish



The Rolland's Damselfish is often referred to by The Black Cap Damselfish, and are found in the South Pacific. They're beautiful fish with colors of black, white, and yellow and are quite friendly for a damselfish. They can provide color and excitement to any saltwater aquarium and reef fish tank. A 30 gallon tank or more with lots of rocks and decorations is the ideal choice. Since it is able to tolerate water conditions that aren't ideal it is a very popular fish with novice hobbyists. A small number of young Black Cap Damsels can add drama and color to many marine aquariums. It is important to keep this species alongside other semi-aggressive fish as they could become territorial once they get older. In larger reef aquariums it is not usually an issue when there are plenty of hiding spots offered. Rolland's Damselfish feeds on a wide variety of meaty food items, including brine shrimp or frozen mysis in preparations for herbivores, as well as flaked food items. Approximate Purchase Size: 3/4" to 1-1/4"    
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General information regarding Rollands Damselfish The Rolland's Damselfish comes from the South Pacific. It is a stunning fish that is colored in yellow, black, and white. They are surprisingly gentle for a Damselfish. They will bring color and energy to any saltwater and reef tank. A medium to large size aquarium with lots of rockwork is ideal. Since it is tolerant of low water conditions it is a very popular fish for beginners to the hobby. A small number of young Black Cap Damsels can add color and drama to the majority of marine aquariums. Keep this species in the company of other fish that are semi-aggressive, since they could become territorial once they get older. In larger aquariums with reefs, it is not usually an issue when enough hiding spots are offered.  
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.