Bolivian Rams are small, colourful, and peaceful cichlids that are a beautiful addition to any community tank. They are a great choice for beginners and can be quite rewarding to breed. But how big do they get?
Characteristics | Values |
---|---|
Common Names | Bolivian Ram, Bolivian Butterfly, Butterfly Cichlid, Bolivian Cichlid, Ruby Crown Cichlid, Ruby Cichlid |
Scientific Name | Mikrogeophagus altispinosus |
Origin | South America (Bolivia and Brazil) |
Habitat | Rivers, streams, tributaries, backwaters, and lakes |
Water Type | Soft and slightly acidic |
Water Temperature | 72-79 °F |
pH Level | 6.0-7.5 |
Water Hardness | 0-10 dKH |
Tank Size | 20-30 gallons |
Diet | Omnivorous |
Average Adult Size | 3 inches |
Average Lifespan | 4 years |
What You'll Learn
Bolivian Rams are sexually dimorphic
Males are usually bigger, with pointed dorsal fins and longer filaments along the tail than females. They also have elongated filaments on their dorsal fins. Males are also slimmer and less stocky than females, with extensions on the upper and inner rays of the caudal fin. They often display more colour in the body.
Females are smaller, reaching about 2.5 inches, while males can grow to about 3.5 inches. Females are stouter and more rounded in the belly area.
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Males are bigger with pointed dorsal fins
Bolivian Ram Cichlids, also known as Bolivian Butterflies or Ruby Crown Cichlids, are a beautiful addition to any community tank. They are known for their vibrant colours and peaceful temperament.
Bolivian Ram Cichlids are sexually dimorphic, meaning there are some physical differences between males and females. Males are typically bigger, reaching sizes of about 3.5 inches, while females usually stay closer to 2.5 inches. Males also have pointed dorsal fins with longer filaments, whereas females have shorter and rounder dorsal fins.
The dorsal fins of the Bolivian Ram Cichlid are transparent with a small black stripe on the front and bright red edging. These fins are not only beautiful but also serve a functional purpose. The rigid rays on the fins act as a defence mechanism against predators. They are sharp enough to pierce the inside of a predator's mouth if the fish is swallowed.
The body colour of these cichlids can range from dull brown to grayish-blue, with yellow bellies that sometimes extend to the front. They are often recognised by their distinctive black spot in the middle of their body and a black line between their eyes. The fins and tails are orange along the edges, providing a striking contrast to their body colouration.
When it comes to behaviour, Bolivian Ram Cichlids are quite shy and will not bother other fish in the tank. They are peaceful and easygoing, making them a great choice for beginners. Their unique swimming behaviour, characterised by short bursts of movement followed by sudden stops, adds to their charm and makes them entertaining to watch.
Overall, the Bolivian Ram Cichlid is a colourful and mellow fish that is well-suited for community aquariums. Their hardy nature and striking appearance make them a popular choice for fish enthusiasts, especially those new to the hobby.
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Females are smaller, reaching about 2.5 inches
Bolivian Ram Cichlids are sexually dimorphic, meaning there are some physical differences between males and females. One of the most notable differences is their size. Females are generally smaller than males, reaching about 2.5 inches in length when fully grown. In contrast, males can get slightly larger, typically growing to sizes of about 3 to 3.5 inches.
The smaller size of female Bolivian Ram Cichlids is likely an adaptation to help them fulfil their maternal role more effectively. Smaller females may be more agile and better able to care for their young, which is essential for the survival of the species. Additionally, their smaller size may also reduce intraspecific competition for resources, as they require less food and space than their male counterparts.
The size difference between male and female Bolivian Ram Cichlids is also advantageous for breeding purposes. In the wild, it is beneficial for the survival of the species to have a mix of male and female offspring. The smaller size of females may encourage the production of female offspring, as they require less energy and resources to raise to maturity. This can help maintain a balance in the population and ensure the long-term survival of the species.
The smaller size of female Bolivian Ram Cichlids may also impact their social dynamics within the aquarium. In a community tank, their smaller size may make them less intimidating to other fish species, reducing the likelihood of territorial conflicts. Additionally, their smaller size may make them less appealing as prey to potential predators, increasing their chances of survival.
It is important to note that while female Bolivian Ram Cichlids typically reach a maximum size of about 2.5 inches, there may be some variation among individuals. Environmental factors, such as water quality, diet, and tank size, can influence the growth and size of these fish. Therefore, it is essential to provide optimal care and conditions to ensure the health and well-being of these beautiful fish.
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Bolivian Rams are hardy fish
Bolivian Rams (Mikrogeophagus altispinosus) are a beautiful, peaceful, and easygoing addition to any community tank. They are a great choice for beginners and can be kept by aquarists of all experience levels. They are quite hardy and with the right water conditions and care, they can live for up to 4 years.
Native to South America, Bolivian Rams are widely available and can be found in the freshwater systems of Brazil and Bolivia. They are known by many common names such as the butterfly ram, Bolivian butterfly cichlid, and ruby cichlid.
These fish are small and colorful, with an elongated oval-shaped body that reaches around 3.5 inches once fully grown. Their body colors range from dull brown to grayish-blue, with yellow bellies that sometimes extend to the front. They have distinctive black spots in the middle of their bodies and fins and tails that are orange along the edges.
The tank for a Bolivian Ram should mimic their natural environment, with fine sand and some pebbles as substrate, and plenty of rocks, driftwood, and hiding places. Aquatic plants such as Java fern, Amazon sword, and wisteria can be added to provide shelter and shade. They prefer low lighting and weak water movement, with a temperature of 74.0-78.0°F and a water hardness in the range of 6-14 dGH.
While Bolivian Rams are hardy, there are still some parasitic, bacterial, and fungal infections that can affect them. A common problem is the white spot disease known as Ich, which can be treated by elevating the water temperature to 86°F or with copper-based medications.
Overall, Bolivian Rams are peaceful, colorful, and easy to care for, making them a great choice for any aquarium enthusiast.
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They are forgiving with slight fluctuations in water conditions
Bolivian Rams are quite hardy and will not have too many problems with slight fluctuations in water quality. They are forgiving with slight fluctuations in water conditions and can adapt to various chemical parameters. However, it is important to stick to their preferred parameters as failing to meet their needs can lead to a host of health issues.
The freshwater bodies they inhabit in the wild are relatively warm, slightly acidic, and don't have a flow that's too powerful. The water temperature should be maintained between 72 to 79 degrees Fahrenheit, the pH levels between 6.0 to 7.5 (with an ideal level of 6.5), and the water hardness between 0 to 10 dKH.
To ensure the best conditions for your Bolivian Rams, it is recommended to replicate their natural habitat as much as possible. This includes providing a sandy substrate, live plants of varying sizes, rocks, and driftwood. The tank should also have large open spaces towards the center to allow for ample swimming, as well as shaded areas to provide reprieve from the light.
It is also important to maintain good filtration and perform partial water changes weekly to reduce the level of nitrates, which can negatively impact the well-being of these fish and even cause mortality in young specimens. While Bolivian Rams are forgiving with slight fluctuations, consistent and proper care will ensure their health and longevity.
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Frequently asked questions
The average size of a fully grown Bolivian Ram Cichlid is around 3 inches, with some males reaching up to 3.5 inches and females typically not exceeding 2.5 inches.
Yes, male Bolivian Ram Cichlids tend to be slightly larger than females, with more elongated body shapes and more extended dorsal and anal fins.
The growth rate of Bolivian Ram Cichlids can vary, but they typically reach their full size within a few months to a year.
Proper care, water quality, and a stress-free environment are crucial for Bolivian Ram Cichlids to reach their full size. Poor water conditions and an inadequate ecosystem can impact their growth and overall health.
Provide a spacious tank with clean, well-oxygenated water, optimal water temperature (72-79°F), and a pH level between 6.0 to 7.5. Offer a varied and nutritious diet, and ensure the tank has ample hiding spots and open spaces for swimming.