Malaysian Trumpet Snail Care Guide - Setup, Diet & Breeding

The Malaysian Trumpet Snail, Melanoides tuberculata, is a small freshwater snail with an elongated, cone-shaped shell. Its shell is usually brown, grey or olive, often marked with darker bands or mottling, and the whorls give it the distinctive trumpet-like appearance behind its common name.

These snails are mostly nocturnal and spend much of the day burrowing through the substrate. After dark they become more active, climbing over the glass, plants and ornaments in search of food. Their constant movement through the substrate can help prevent compacted areas and brings a fascinating glimpse of natural detritivore behaviour to the aquarium.

In nature, Malaysian Trumpet Snails inhabit slow-moving rivers, streams, ponds, irrigation channels and soft muddy margins. They tolerate a wide range of conditions and are especially successful in warm, mineral-rich freshwater, where they feed on organic debris, algae and microorganisms.

They are generally peaceful and harmless to healthy fish, plants and other calm invertebrates. A small number can be useful members of a freshwater cleanup crew, although their population may increase quickly when excess food is available.

Despite their common name, Malaysian Trumpet Snails are native to a broad region extending across South and Southeast Asia, including parts of India, Sri Lanka, Thailand, Malaysia and Indonesia. They have since become established in many tropical and subtropical freshwater habitats around the world through the aquarium trade and other introductions.

A Malaysian Trumpet Snail can be kept in an aquarium of around 20 litres, with a larger footprint of approximately 40 x 25 cm preferred for a developing colony. Use a soft sand or fine-gravel substrate several centimetres deep so the snails can burrow naturally, and include plants, wood and rocks for grazing surfaces. Stable, oxygenated freshwater with moderate to hard mineral content is ideal. A secure lid is useful because snails may explore above the waterline, and filtration should prevent them from being drawn into the intake.

Up to approximately 3 cm (1.2 inches) in shell length. Females are typically larger and more robust than the uncommon males.

These omnivorous scavengers feed on algae, uneaten fish food, decaying plant matter, biofilm and microorganisms in the substrate. They usually find enough food in an established aquarium, but they can be supplemented with sinking algae wafers, shrimp foods, blanched vegetables and occasional calcium-rich foods. Avoid deliberately overfeeding, as excess food is the main cause of unwanted population explosions. A steady source of calcium helps them maintain strong shells.

Malaysian Trumpet Snails are suitable companions for peaceful community fish such as tetras, rasboras, danios, livebearers, dwarf gouramis and small corydoras. They can also be kept with most peaceful shrimp and other non-predatory snails. Avoid assassin snails, pufferfish, many loaches and snail-eating cichlids, which may attack or consume them. Copper-based medications are highly toxic to snails and should not be used in their aquarium.

Malaysian Trumpet Snails are remarkably easy to breed. Females can reproduce asexually through parthenogenesis, so a single snail may establish a population without a mate. They give birth to fully formed live young, which emerge from a brood pouch beneath the shell. The young hide in the substrate at first and grow steadily when food and calcium are available. Population growth is usually controlled by avoiding overfeeding and removing surplus snails by hand.

Females are generally larger and more numerous than males, while males are uncommon in many aquarium populations. External differences are subtle, so individual snails cannot always be sexed reliably by appearance alone.