Malaysian trumpet snail care guide

1How big do they get?

The breeder reports typical adults around 25–38 mm. Size varies between populations; this is a planning range, not a maximum for the species.

Adult shell size

25–38 mm (Axis not stated) Breeder’s typical adult range; larger individuals occur. Source does not specify a measurement axis. Fact source

2How long do they live?

Plan for roughly 1–3 years. Aquarium Care Basics reports around a year, while the UWI ecological account gives 2.5–3 years. Neither guarantees the remaining life of an adult you receive.

Lifespan

1–3 years 04 years Broad planning estimate: aquarium observations around one year; ecological account 2.5–3 years. Fact source

3What do they eat?

They forage for organic debris, algae and microorganisms. Offer suitable sinking food when needed, but avoid feeding an invisible colony more than it can consume.

Diet type

Detritivore Organic debris, microorganisms and algae; also accepts prepared foods. Fact source

4Do they eat plants?

Healthy plants are normally safe. Decaying leaves are food, so finding a snail on damaged foliage does not establish that it caused the damage.

Plant eating

No Healthy plants normally left intact. Fact source

5Do they eat algae or clean the tank?

They eat some algae and biofilm, but also produce waste. Keep up normal maintenance rather than expecting a colony to make the tank self-cleaning.

Algae role

Some Some surface grazing, alongside detritus feeding. Fact source

6What eats them?

Assassin snails readily prey on trumpet snails. Avoid adding a predator merely to solve overfeeding; it creates another animal with its own care needs.

Predators

Assassin snails and snail-eating fish. Fact source

7Are they safe with shrimp, fish and other snails?

The Shrimp Farm keeps MTS alongside its shrimp, sharing feeding areas. Peaceful fish and snails can also work; exclude predators and check that water requirements overlap.

With shrimp

Yes Peaceful shrimp with compatible water needs. Fact source

With fish

Caution Choose non-predatory community fish. Fact source

With other snails

Caution Peaceful snails can coexist; assassins prey on trumpet snails. Fact source

8How many per tank?

A 20-litre or larger, mature, filtered tank is a starting point for a small colony. Reassess the load as it grows; a water-volume figure cannot set a permanent snail count.

Starting tank volume with conditions

20 litres For a small starting colony in a mature, filtered aquarium; five US gallons rounded up. Population and other livestock matter. Fact source

9Do they need a heater, or can they live in cold water?

21–26°C is the keeper’s community-tank band, rounded from Fahrenheit. The breeder gives 22–30°C. Use a heater where needed for stable conditions; wild survival records are not care targets.

Recommended water temperature

21–26 °C 1530 °C 70–78°F rounded to whole Celsius degrees. Not the full survival range. Fact source

10What water do they need?

Start with pH 7.0–7.5 and suitable mineral content. The breeder gives KH 2–12°dKH; KH is buffering capacity, not a substitute for checking general hardness or calcium.

pH

7–7.5 pH 69 pH Practical aquarium recommendation, not a species tolerance boundary. Fact source

Hardness guidance with units

KH 2–12°dKH (breeder guidance); keep adequate calcium for shell growth. Fact source

11How do they breed, and how fast?

One female can start a colony through parthenogenesis, without a mate. Young develop internally and are released alive; sexual reproduction also occurs in this species.

Can reproduce in a freshwater aquarium

Yes Fact source

Breeding speed

High Prolific when food and conditions permit. Fact source

Pair needed

No Parthenogenesis occurs: a female can reproduce without mating. Sexual populations also exist. Fact source

12What do the eggs look like, and how long do they take to hatch?

You will not find an external MTS egg clutch to incubate. The female broods her young internally, so a glass-mounted jelly patch belongs to another kind of snail.

Reproduction type

Livebearing Fact source

Hatching time

Not applicable Young develop in a brood pouch; no external egg clutch to monitor. Fact source

13Are they good or bad, and how do I get rid of them?

Whether they are welcome depends on the tank. If numbers rise sharply, reduce excess feeding, remove leftovers and manually remove unwanted snails. Do not release them outdoors or use another animal as an instant fix.

Population growth concern

High Surplus food can support rapid population growth. Fact source

14Are they nocturnal, and why do they hide?

They spend much of the day in the substrate and often emerge after dark. A few appearing for daytime food is normal; investigate water quality if behaviour changes across the colony.

Active time

Night Mainly nocturnal; food can draw them out during the day. Fact source

Burrows

Yes Fact source

15Can they survive out of water or climb out?

Keep the aquarium covered and protect strong filter intakes. Small snails can become trapped at an unguarded intake.

Secure lid needed

Yes Use a covered aquarium and protect filter intakes. Fact source

16Is it dead, or just not moving?

A snail hidden beneath the substrate may be alive and feeding. For a visible motionless animal, check water and signs of decay; do not dig up the whole tank just to count the colony.

17Why is the shell damaged, and do they need calcium?

Calcium supports new shell growth. Check food and water chemistry when damage develops, and avoid abrupt mineral or pH changes.

Calcium required

Yes Fact source