Alyssa's Seahorse Savvy

ORA Darwin Black Ocellaris Clownfish

Sale price Price $39.99 Regular price $39.99

This is for a single captive bred ORA Darwin Black A. ocellaris clownfish

Darwin Black Ocellaris clownfish are a stunning color morph of A. ocellaris.  This is variation has a very small natural range found in the Darwin area of Northern Australia.  These fish have rarely, if ever been imported from the native range so captive bred specimens make up nearly the entire market.

Black Ocellaris begin life orange colored and switch to black as they mature. Young individuals we offer may have a bit of orange on their faces and possibly on their body. All orange color disappears as they age. They will be completely black and white with maturity. 

Size: ~1-1.5 inches. Will reach ~2-3.5 inches with maturity.

All of our clownfish are U.S. captive bred and held at our farm before being shipped out. We are feeding them a mix of TDO pellets (available on our website, TDO XS), PE Mysis pellets, and a mix of frozen foods including Mysis shrimp. 

Care Information:

We recommend a 20 gallon minimum aquarium size for a single or pair of captive bred clownfish. When born, clownfish are all male and when two are kept together the larger will change to a female. Clownfish are best kept singly or as a pair. Keeping groups of clownfish together long term can be difficult as aggression is typically seen. Given proper conditions, clownfish are one of the hardiest saltwater fish to keep in aquariums. 

Keeping them with our captive bred seahorses:

If you decide to try keeping clownfish with your seahorses we recommend sticking with either A. ocellaris or A. percula. These two species of clownfish are among the more peaceful species and what we recommend if you are going to try keeping them with your seahorses. 

Mature breeding pairs of clownfish can sometimes become territorial. For this reason you want to keep an eye on them when they mature although they maybe perfectly fine with your seahorses long term with no issues. If you are concerned about this, you can also consider keeping a single clownfish rather than a pair. 

Mature breeding pairs of clownfish will often lay an average of 350 eggs every 10-14 days. 

Clownfish are known for their symbiotic relationship with anemones. Captive bred clown will often times form this relationship when kept with an anemone. Anemones are not  seahorse safe and we do not recommend keeping them in the aquarium if you have seahorses in your aquarium. Clownfish are perfectly fine long term without an anemone present.

Clownfish are saltwater fish! Please make sure your aquarium is fully cycled before adding any fish. This process typically takes 6-8 weeks. If you have any questions about your aquarium being ready for your new fish please contact us, we are happy to help.

Recommended water parameters for keeping them:

Specific gravity: 1.023-1.025

pH: 8.1-8.4

Alkalinity: 8-12 Dkh

Ammonia (NH3): undetectable!

Nitrites (NO2): undetectable!

Nitrates (NO3): (ideally undetectable) <25 ppm

Phosphates (PO4): (ideally undetectable) <0.2 ppm

Calcium: 350-450 ppm

Magnesium: 1250-1350 ppm

Temperature: 70-78 F (70-74 F if kept with our captive bred seahorses)

If you have any questions about our clownfish or placing an order please contact us at 410-618-3604 or email We are happy to help.