About Black Moor Fish in Aquariums

Written by chris wolski
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Black Moor goldfish are one of over 100 different species of fancy goldfish bred in captivity. They are distinguished by their egg shaped bodies, protruding eyes and metallic scales which give them a velvety black sheen. Their large eyes provide for poor vision, and this should be considered when constructing artificial habitats for them. Black Moors are hardy fish and can be kept in fish bowls, aquariums and select pond environments; however aquariums are your best bet for maintaining the fish for long periods in optimal health.


Tank size and shape are important considerations, and you will have to take into account the number of fish you plan to care for when making your decision. Black Moor fish need a lot of oxygen and they produce a lot of waste; an aquarium with a relatively large surface area is best for oxygen generation. Tank covers are not necessary but they will be helpful in reducing water evaporation.

Aquarium Decor

As these fish have a tough time seeing, you will have to choose your tank decor carefully. Gravel substrate is recommended for the bottom of the tank, and any ornamentation used should be smooth with no protruding points or edges. Plants are a good choice according to Animal World, but this fish likes to dig so artificial plants may be a better choice than live ones.


Black Moor goldfish can withstand temperatures a few degrees above freezing, however their health is best maintained in water temperatures between 18.3 and 23.9 degrees Celsius (-7.77 to -5.55 degrees C Celsius). Too quick of a temperature change can adversely affect the fish, so think about getting a heater if you live in a northern region that experiences the four seasons. In terms of the amount of water needed, Animal World suggests that you have a gallon of water for each of your juvenile Black Moor fish; you will have to add more as they age and grow. A biological aquarium filtration system is recommended.


Black Moor are omnivorous; they eat all kinds of fresh, frozen and flake foods. They should be given high quality flake fish food on a daily basis, and fed live or frozen shrimp or blood worms as occasional treats. Using frozen foods reduces the risk of parasite distribution and bacterial infections which are a risk with live foods.


As these fish have a hard time seeing, they can also have a hard time finding their food; housing them with other competitive fish is not a good idea. Look for tank-mates with similar vision impairments such as telescope, celestial and bubble-eye goldfish. A small algae eating catfish can help you keep the tank clean, and you don't have to worry about them hoarding fish food. Changing 1/4 to 1/3 of the water in your tank on a regular basis is highly recommended.

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