Max Size: 5cm

Giant Colombian Ramshorn Snail (Marisa cornuarietis)

The Giant Colombian Ramshorn Snail (Marisa cornuarietis) is an attractive, large snail and is a popular addition to freshwater aquariums in which plants are not considered a prized centrepiece as these snails are, in fact, prolific plant-eaters. In addition, these snails are peaceful and will not pester other tank inhabitants. However, it would be best if you did not keep them with fish that eat snails or species that may attack them, such as the Clown Loach, Dwarf Chain Loach and other species of Botia Loach or Pufferfish.

Giant Colombian Ramshorn Snails have lungs, gills and an operculum. Their lungs enable them to survive in waters with low dissolved oxygen levels where many other species would die. In addition, their pretty shells and their scavenging skills make them popular with tropical fish keeping enthusiasts.

Because of the planispiral coiling, these shells resemble the Great Ramshorn Snail. However, they are not closely related to actual Ramshorn snails in the family Planorbidae; they are from the Apple Snail family.

Their shells are smooth, often unevenly striped, and vary from yellow to dark brown to darkish red, reddish-brown, to more vivid shades of both colours. The three to six dark spiral bands mainly located at the umbilicus can be dark brown or even black. Black and yellow mutations without a banding pattern are also comparatively common. Sometimes the shells can be divided into two parts, with one side being light and one being dark.

The snail's apparent soft parts of the body can be coloured white with a yellowish hue, golden or grey and black with coloured spots. These snails also have long tentacles and black eyes. The snail's upper side is often just beige, with the bottom being a darker brown colour.

Giant Colombian Ramshorn Snail (Marisa cornuarietis) Video

Giant Colombian Ramshorn Snail (Marisa cornuarietis) Rare Freshwater Aquarium Snail Profile & Care


Columbian Ramshorn Snail
Columbian Ramshorn Snail
Columbian Ramshorn Snail
Columbian Ramshorn Snail
Giant Colombian Ramshorn Snail
Giant Colombian Ramshorn Snail
Giant Colombian Ramshorn Snail
Giant Colombian Ramshorn Snail Eggs
Quick Facts
Scientific NameMarisa cornuarietis
Year Described1957
Other NamesGiant Ramshorn Snail, Giant Striped Apple Snail, Marisa Snail, Paradise Snail, Apple Snail, Golden Horn Marissa, Striped Ramshorn Snail, Stripehorn Snail, Hard Disk Snail.
Classification Gastropoda
Order Architaenioglossa
OriginsBrazil, Colombia, Costa Rica, Honduras, Panama, Venezuela
Aquarium LevelAll Levels
DifficultyBeginner - Intermediate
Lifespan2 - 3 years
Water Parameters
Water TypeFreshwater
PH7.5 - 8.0
TDS150 - 250
75 - 81℉
23.9 - 27.2℃


The Giant Columbian Ramshorn Snail feeds primarily on living and decomposing aquatic plants. However, they can also consume decaying animals, live eggs, and even other juvenile snails.

Giant Colombian Ramshorn Snails are relatively undemanding and will feed on various foods, including most aquatic plants and regular fish food such as pellets, wafers and flakes. In addition, these snails will also accept multiple small frozen fish foods and blanched vegetables.

However, remember that these snails will not 'clean' the tank, and they must receive a dedicated varied diet including calcium-enriched foods to ensure their shells will not corrode. In addition, the use of liquid calcium, cuttlefish bones, calcium pills and eggshells is encouraged for healthy shell conditions, especially when the water is relatively soft and acidic.

Sexual Dimorphism

It is somewhat challenging to differentiate between male and female Giant Colombian Ramshorn Snails. However, males seem to have a rounder operculum and are light-beige in colour and possess small brown spots, while females have dark chocolate coloured bottom parts.

Other Snails of interest

Apple Snail(Pomacea bridgesii, Pomacea canaliculata, Pomacea diffusa, Pomacea haustrum, Pomacea paludosa, Pomacea maculata)
Assassin Snail(Clea Helena)
Malaysian Trumpet Snail(Melanoides Tuberculata)
Pond Snail(Lymnaea stagnalis)
Rabbit Snail(Tylomelania gemmifera)
Ramshorn Snail(Planorbella duryi)
View all Snails
Date Added: 05/02/2021 - Updated: 21/02/2022 13:25:13