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The Black Moor Goldfish (Carassius auratus auratus) is a captivating and unique fancy goldfish, instantly recognizable by its prominent, protruding "telescope" eyes and its velvety, deep black coloration. Originating from China, the Black Moor is a variant of the Telescope Eye goldfish, specifically bred for its striking dark pigment. While typically black, some individuals may develop bronze or orange undertones, especially when young, or may lighten with age or suboptimal conditions.
Their body shape is typically rounded and egg-like, similar to a Fantail, and they possess elegant, flowing double caudal (tail) fins. The combination of their distinctive eyes and leisurely swimming style gives them a somewhat regal and mysterious appearance in the aquarium. However, their unique features also necessitate specific care considerations.
While hardy in terms of water parameter tolerance, Black Moors require "moderate" care due to their specialized physical features. Their protruding eyes make them more susceptible to injury and also impair their vision, impacting their ability to compete for food and navigate their environment. This means careful tank setup and thoughtful tank mate selection are crucial for their well-being.
Black Moors are generally very peaceful and social fish. They are not fast swimmers due to their rounded bodies and long fins, and their vision is notably poor. This makes them less competitive at feeding time and more prone to being bumped by faster, more agile tank mates. Therefore, they should only be housed with other slow-moving, fancy goldfish varieties that also have impaired vision or similar swimming abilities (e.g., other Telescope Eyes, Fantails, Orandas, or Ryukins). They are unsuitable for ponds where they might struggle to compete or become prey.
Black Moor goldfish are omnivores and should be fed a varied diet. Due to their compact body shape and internal organ arrangement, they can be prone to digestive and buoyancy issues (swim bladder disorder). To mitigate this:
Black Moors can grow quite large, typically reaching 15-20 cm (6-8 inches) in body length, with some individuals potentially growing larger (up to 25 cm) in optimal conditions. Their adult size must be considered when planning their habitat.
This is a critical requirement. A 75-liter tank is the absolute minimum for a single Black Moor. For a pair or small group of fancy goldfish, significantly larger tanks (e.g., 150-200 litres or more) are strongly recommended. Providing ample space is crucial for their growth, water quality, and overall well-being. Goldfish bowls are never suitable for Black Moors due to inadequate space, filtration, and oxygenation, and can lead to severe health problems and premature death.


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