Mikrogeophagus ramirezi

Mikrogeophagus ramirezi

Blue Ramirezi

Long Find Blue Ramirezi

Balloon Blue Ramirezi

Long Fin Balloon Blue Ramirezi

Gold Ramirezi

Long Fin Golden Ramirezi

Balloon Gold Ramirezi

Holland Ramirezi

Balloon Holland Ramirezi

Cobalt Blue Ramirezi

Balloon Cobalt Blue Ramirezi

Mikrogeophagus ramirezi is a species of freshwater fish endemic to the Orinoco River basin, in the savannahs of Venezuela and Colombia in South America. The species has been examined in studies on fish behaviour and is a popular aquarium fish, traded under a variety of common names including Ram, Blue ram, German blue ram, Asian ram, Butterfly cichlid, Ramirez's dwarf cichlid, Dwarf butterfly cichlid and Ramirezi. The species is a member of the family Cichlidae and is included in subfamily Geophaginae. Male specimens of the ram usually have the first few rays of the dorsal fin extended, but breeding has made some females also show this. There is also the fact that, when close to spawning, female rams have a pink or red blush on the abdomen. Females also have a blue sheen over the spot just below the dorsal fin, and males do not show this. Males reach a maximum length of seven centimeters, and females are usually slightly smaller. 

The natural habitat of M. ramirezi occurs in the warm, acidic water courses in the llanos savannahs of Venezuela and Colombia. The water at sites where M. ramirezi has been found is generally slow-flowing, contains few dissolved minerals, and ranges in color from clear to darkly stained with tannins. The species is typically found where cover in the form of aquatic or submersed vegetation is available. The ram cichlid is a popular cichlid for the tropical freshwater, community aquarium although it is not necessarily the easiest cichlid to maintain in many situations. This is because the species is often kept with other fish that are more assertive, aggressive or overly active. The species is innately shy and is best kept with passive dither fish, such as neon or cardinal tetras. The species will readily exhibit breeding behaviours in water of pH 5.5-6.5, though softer water encourages more regular spawning. It is easier to maintain the species in larger aquaria as the species is intolerant of common aquarium pollutants such as nitrate. The aquarium should be decorated to mimic the natural environment and is best decorated with several densely planted regions of aquatic plants, separated by open water. The species is prone to filial cannibalism of its brood if distressed. As the water must be free of pollutants, aquarium filtration is important, though water movement should not be extreme. Removing and replacing small amounts of water assists with minimizing the quantities of these pollutants and should be conducted regularly.

  七彩鱼虽然也是个十足的地盘主义者,但无奈过于细小,难以对其它鱼造成威胁,因此十分适于混养。七彩凤凰鱼对饲养环境有一定要求,饲养 七彩凤凰鱼箱最好铺底砂、种水草。水质应清澈陈旧,光线不应太强,水温控制在26—30℃为宜。在这种环境下饲养的七彩凤凰鱼不易生病,生长迅速,成年后会向人们充分展示它那五彩缤纷的色彩。