Giant ramshorn (marisa cornuarietis) | Facts & Information

# Giant ramshorn (Marisa Cornuarietis) | Facts & Information

Giant ramshorn (Marisa Cornuarietis) | Discover Fascinating Facts and Information About Giant ramshorn (Marisa Cornuarietis)

They are widespread in the northern part of South America, where they are also native to some of the Caribbean islands.

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Giant Ramshorn (Marisa Cornuarietis)

Giant ramshorn (Marisa Cornuarietis)

Marisa Cornuarietis, also known as the Giant Ramshorn, is a highly popular freshwater snail among aquarium enthusiasts. Its name is derived from the spiral shape of its shell, which resembles a ram's horn.

Origin and habitat
This snail originated in South America and is found in several countries such as Brazil, Colombia, Venezuela, and Bolivia. Over time, it has been introduced to other parts of the world, including Europe and North America, due to its popularity in aquariums.

The natural habitat of the Giant Ramshorn snail is freshwater, especially ponds, lakes, and rivers with rich vegetation. To survive, it requires an environment with temperatures around 20-28 degrees Celsius and a neutral to slightly alkaline pH.

Physical characteristics
Marisa Cornuarietis is a medium-sized snail, reaching a length of approximately 5 centimeters. It has a conical shell with a slightly flattened shape, generally dark brown or black in color. The surface of the shell shows a series of rings, indicating its growth over time.

The snail's body covering varies in shades of brown, with dark stripes or lighter spots. At the front, Marisa Cornuarietis has two pairs of tentacles, the longer ones being equipped with eyes at the end.

Behavior and diet
Marisa Cornuarietis is an active and curious snail that spends most of its time exploring the aquatic environment. It can move both on the water's surface and on the substrate at the bottom.

One remarkable characteristic of this snail is that it can breathe both air and water. When the water becomes low in oxygen, it can rise to the surface to breathe air. It is also capable of surviving in stagnant water, which may have a low oxygen content.

As for its diet, Marisa Cornuarietis is an omnivorous snail, feeding on aquatic vegetation such as algae or soft-leaved plants, as well as detritus and microorganisms. It can also consume leftover food in the aquarium, making it an ideal option for maintaining cleanliness in a community tank.

Reproduction and growth
Marisa Cornuarietis is a hermaphrodite snail, meaning that each individual has both male and female reproductive organs. During the reproductive process, snails can self-fertilize, but they can also crossbreed with other snails, leading to greater genetic diversity.

After fertilization, the snails lay their eggs around the water. The eggs are yellow and have a rounded shape. The incubation period lasts about 10-14 days, depending on the water temperature. The eggs hatch and give rise to young individuals that will grow and develop rapidly in the aquarium.

Importance in the aquarium
The Giant Ramshorn snail is highly appreciated in aquariums due to its multiple benefits. Besides having an attractive appearance, it is also useful in maintaining cleanliness in the aquarium as it consumes algae and organic debris.

Additionally, snails of this type can be used as indicators to determine the water quality in the aquarium. When the water has a low oxygen content or a high amount of pollutants, Giant Ramshorn snails can be the first to show signs of stress or health problems.

In conclusion, Marisa Cornuarietis is a fascinating freshwater snail that enjoys popularity in the field of aquaristics. These snails are appreciated for their beautiful shape and interesting behavior, as well as their contribution to maintaining the health and cleanliness of the aquarium.









The giant ramshorn snail (Marisa Cornuarietis) belongs to the family Ampullariidae. These snails are popular, found in many aquariums and are also used in the wild as biological agents.

It was first seen in Texas in 1983, in Florida in 1957. Specimens have also been seen in California and Idaho.

Common name under which it can be found: giant ramshorn snail.

Marisa Cornuarietis Food

These snails will eat almost anything they find, dead and decaying plants, dead fish, caviar, but they will also eat the leftovers of fish meals. Cannibalism can occur in cases of overpopulation.

Features Marisa Cornuarietis

They require a spacious aquarium with filtered and well oxygenated water but cannot be kept in planted aquariums because they will eat the plants. In the aquarium there can be a moderate current of water and in order for the snails to develop harmoniously and reach maximum sizes, the aquarium must be at least 60 cm long.

Although it is a freshwater species, it can also tolerate relatively high concentrations of salt in the water, however reproduction will occur only in fresh water.

Breeding Marisa Cornuarietis

Sexual dimorphism: they are not hermaphrodites but the differences between the sexes are not very obvious. If you look closely at two shells, it will be noticed that the male has a rounder profile and the female, in cross section is less round.

They will lay eggs on plants, under the surface of the water and are covered by a gelatinous matter. The eggs are between 2-3 mm when laid but as the snails develop, they grow up to 4 mm and the young can be seen inside them.

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Giant ramshorn (marisa cornuarietis) | Facts & InformationGiant Ramshorn (marisa Cornuarietis) | Discover Fascinating Facts and Information About Giant Ramshorn (marisa Cornuarietis)