Can Green Terror and Malaysian Trumpet Snail (MTS) Live Together?

🔴Not Recommended

Green Terror and Malaysian Trumpet Snail (MTS) are not recommended as tank mates due to piscivorous fish will prey on nano-sized tank mates.. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Green Terror

Andinoacara rivulatus

Malaysian Trumpet Snail (MTS)

Melanoides tuberculata

🐠Family Group
Green Terror
Cichlids - South American
Malaysian Trumpet Snail (MTS)
Invertebrates
Temperament
Green Terror
Aggressive (8/10)
Malaysian Trumpet Snail (MTS)
Peaceful (0/10)
Temperature
✓ Compatible
Green Terror
20–28°C
Malaysian Trumpet Snail (MTS)
18–32°C
pH Range
✓ Compatible
Green Terror
6.5–8
Malaysian Trumpet Snail (MTS)
7–8.5
Hardness (dGH)
✓ Compatible
Green Terror
5–20
Malaysian Trumpet Snail (MTS)
8–25
Water Type
✓ Compatible
Green Terror
Freshwater Only
Malaysian Trumpet Snail (MTS)
Brackish Tolerant
Flow Preference
✓ Compatible
Green Terror
Moderate
Malaysian Trumpet Snail (MTS)
Low
Min Tank Volume
Combined: 240 L
Green Terror
200 L
Malaysian Trumpet Snail (MTS)
5 L
Swimming Level
Shared: 1 zone
Green Terror
MiddleBottom
Malaysian Trumpet Snail (MTS)
Bottom
🏷️Behavior Tags
Green Terror
Generally AggressiveAggressive to same species/look-alikesTerritorial (Defends specific area)Piscivore (Eats small/nano fish)Digger (Disturbs Substrate)Plant Destroyer
Malaysian Trumpet Snail (MTS)
Nano / Bite-sized (Predation Risk)Digger (Disturbs Substrate)Nocturnal

Behaviour & Temperament

Green Terror is a semi-aggressive species (8/10), while Malaysian Trumpet Snail (MTS) is peaceful (0/10). This notable difference means Green Terror may occasionally assert dominance over Malaysian Trumpet Snail (MTS).

Large aggression gap (8 points) between Green Terror and Malaysian Trumpet Snail (MTS) increases stress risk for the more peaceful fish.

Green Terror and Malaysian Trumpet Snail (MTS) both frequent the Bottom (Substrate) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.

There is a critical concern: the Piscivore (Eats small/nano fish) behaviour of one fish directly conflicts with the Nano / Bite-sized (Predation Risk) trait of the other — piscivorous fish will prey on nano-sized tank mates..

Worth noting: Malaysian Trumpet Snail (MTS) is nocturnal and will be most active after lights-out, naturally reducing daytime encounters.

Water Parameters

The safe temperature window for both species falls between 20°C and 28°C. Aim for the midpoint of this range (around 24.0°C) for optimal comfort.

Both fish can tolerate a pH between 7 and 8. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 8–20 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.

Tank Setup

To house Green Terror and Malaysian Trumpet Snail (MTS) together, plan for an aquarium of at least 240 litres with a minimum length of 120 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.

Providing a mix of open swimming space and sheltered areas with rocks, driftwood, or plants will keep both species comfortable and allow natural behaviour.

Specific environmental needs for this combination include: Sand (Sifters), Driftwood (Digestion/Hiding), Smooth Gravel (Sensitive Barbels), Soil / Nutrient Rich. Meeting these requirements will help both species thrive.

Note a potential conflict in setup requirements: Green Terror requires Sand (Sifters), while Malaysian Trumpet Snail (MTS) requires Soil / Nutrient Rich. These substrate types may be difficult to provide simultaneously. Green Terror requires Smooth Gravel (Sensitive Barbels), while Malaysian Trumpet Snail (MTS) requires Soil / Nutrient Rich. These substrate types may be difficult to provide simultaneously. Compromise where possible or prioritise the more critical need.

Both species do well with moderate (standard) water movement, so a standard filtration setup rated for the tank volume should suffice.

Find the right tank equipment

Browse tanks, décor, and equipment suited for this setup.

Frequently Asked Questions

Can Green Terror and Malaysian Trumpet Snail (MTS) live together?

No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.

What size tank do Green Terror and Malaysian Trumpet Snail (MTS) need?

A minimum of 240 litres (tank length at least 120 cm) is recommended. This provides enough space for both species to establish their own areas and reduces the likelihood of territorial disputes.

What water temperature is best for Green Terror and Malaysian Trumpet Snail (MTS) together?

Keep the aquarium between 20°C and 28°C. A target of around 24.0°C sits comfortably within both species' preferred ranges.

Are Green Terror or Malaysian Trumpet Snail (MTS) aggressive?

Green Terror is semi-aggressive (8/10) and Malaysian Trumpet Snail (MTS) is peaceful (0/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Green Terror and Malaysian Trumpet Snail (MTS) need?

Both species overlap in the 7–8 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

How do I manage Green Terror's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Green Terror space to claim a territory without encroaching on the other fish's area. Adding décor that divides the tank into distinct zones works especially well.

Does Malaysian Trumpet Snail (MTS) being nocturnal affect compatibility?

Malaysian Trumpet Snail (MTS) is most active after lights-out, which naturally reduces daytime encounters with its tank mate. This can actually be beneficial, as both fish get undisturbed time to feed and explore. Just ensure food reaches Malaysian Trumpet Snail (MTS) during evening hours.


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