Can Malaysian Trumpet Snail (MTS) and Turquoise Rainbowfish Live Together?

🟢Ideal Tank Mates

Yes, Malaysian Trumpet Snail (MTS) and Turquoise Rainbowfish are ideal tank mates. Both species share compatible water parameters and peaceful temperaments, making them well-suited for a community aquarium. They occupy different areas of the water column, which reduces competition for space. A minimum tank size of 192 litres is recommended.


At a Glance

Malaysian Trumpet Snail (MTS)

Melanoides tuberculata

Turquoise Rainbowfish

Melanotaenia lacustris

🐠Family Group
Malaysian Trumpet Snail (MTS)
Invertebrates
Turquoise Rainbowfish
Rainbowfish
Temperament
Malaysian Trumpet Snail (MTS)
Peaceful (0/10)
Turquoise Rainbowfish
Peaceful (2/10)
Temperature
✓ Compatible
Malaysian Trumpet Snail (MTS)
18–32°C
Turquoise Rainbowfish
20–25°C
pH Range
✓ Compatible
Malaysian Trumpet Snail (MTS)
7–8.5
Turquoise Rainbowfish
7–9
Hardness (dGH)
✓ Compatible
Malaysian Trumpet Snail (MTS)
8–25
Turquoise Rainbowfish
10–25
Water Type
✓ Compatible
Malaysian Trumpet Snail (MTS)
Brackish Tolerant
Turquoise Rainbowfish
Freshwater Only
Flow Preference
✓ Compatible
Malaysian Trumpet Snail (MTS)
Low
Turquoise Rainbowfish
Moderate
Min Tank Volume
Combined: 192 L
Malaysian Trumpet Snail (MTS)
5 L
Turquoise Rainbowfish
160 L
Swimming Level
✓ Different zones
Malaysian Trumpet Snail (MTS)
Bottom
Turquoise Rainbowfish
TopMiddle
🏷️Behavior Tags
Malaysian Trumpet Snail (MTS)
Nano / Bite-sized (Predation Risk)Digger (Disturbs Substrate)Nocturnal
Turquoise Rainbowfish
Hyperactive / Fast SwimmerJumper (Lid Required)Aggressive Eater (Starves shy fish)

Behaviour & Temperament

Malaysian Trumpet Snail (MTS) is a peaceful species (0/10), while Turquoise Rainbowfish is peaceful (2/10). This modest difference means Turquoise Rainbowfish may occasionally assert dominance over Malaysian Trumpet Snail (MTS).

In terms of spatial distribution, Malaysian Trumpet Snail (MTS) prefers the Bottom (Substrate) zone, whereas Turquoise Rainbowfish occupies the Top (Surface) and Middle (Open Water) zones. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.

Worth noting: Malaysian Trumpet Snail (MTS) is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Turquoise Rainbowfish is a known jumper, so a tight-fitting lid is essential.

Water Parameters

The safe temperature window for both species falls between 20°C and 25°C. Aim for the midpoint of this range (around 22.5°C) for optimal comfort.

Both fish can tolerate a pH between 7 and 8.5. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 10–25 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.

Tank Setup

To house Malaysian Trumpet Snail (MTS) and Turquoise Rainbowfish together, plan for an aquarium of at least 192 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), Soil / Nutrient Rich, Plants - Densely covered, Plants - lighly covered. Meeting these requirements will help both species thrive.

Both species do well with low (still water) 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 Malaysian Trumpet Snail (MTS) and Turquoise Rainbowfish live together?

Yes. Malaysian Trumpet Snail (MTS) and Turquoise Rainbowfish are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Malaysian Trumpet Snail (MTS) and Turquoise Rainbowfish need?

A minimum of 192 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 Malaysian Trumpet Snail (MTS) and Turquoise Rainbowfish together?

Keep the aquarium between 20°C and 25°C. A target of around 22.5°C sits comfortably within both species' preferred ranges.

Are Malaysian Trumpet Snail (MTS) or Turquoise Rainbowfish aggressive?

Malaysian Trumpet Snail (MTS) is peaceful (0/10) and Turquoise Rainbowfish is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Malaysian Trumpet Snail (MTS) and Turquoise Rainbowfish need?

Both species overlap in the 7–8.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

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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