Can Giant Gourami and Malaysian Trumpet Snail (MTS) Live Together?
Keeping Giant Gourami and Malaysian Trumpet Snail (MTS) together is possible but requires caution due to differing aggression levels. Provide a spacious tank of at least 1200 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.
At a Glance
Behaviour & Temperament
Giant Gourami is a moderately assertive species (6/10), while Malaysian Trumpet Snail (MTS) is peaceful (0/10). This notable difference means Giant Gourami may occasionally assert dominance over Malaysian Trumpet Snail (MTS).
Large aggression gap (6 points) between Giant Gourami and Malaysian Trumpet Snail (MTS) increases stress risk for the more peaceful fish.
In terms of spatial distribution, Giant Gourami prefers the Top (Surface) and Middle (Open Water) zones, whereas Malaysian Trumpet Snail (MTS) occupies the Bottom (Substrate) zone. 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.
To improve the chances of a peaceful coexistence in this community tank: Provide a significantly larger tank (at least 50% more volume than the minimum) to allow both Giant Gourami and Malaysian Trumpet Snail (MTS) to establish separate territories. Add plenty of line-of-sight breaks using driftwood, rocks, and dense planting to reduce territorial confrontations. A larger aquarium with ample hiding spots can help diffuse aggression and give the less dominant fish space to retreat.
Water Parameters
The safe temperature window for both species falls between 22°C and 30°C. Aim for the midpoint of this range (around 26.0°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 8–25 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.
Tank Setup
To house Giant Gourami and Malaysian Trumpet Snail (MTS) together, plan for an aquarium of at least 1200 litres with a minimum length of 200 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.
Because this pairing requires extra vigilance, include plenty of hiding spots — caves, driftwood, and dense plant clusters — so the less dominant fish can retreat when needed.
Specific environmental needs for this combination include: Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding), Sand (Sifters), Soil / Nutrient Rich. Meeting these requirements will help both species thrive.
Note a potential conflict in setup requirements: Giant Gourami 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
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Frequently Asked Questions
Can Giant Gourami and Malaysian Trumpet Snail (MTS) live together?▾
They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 1200 litres), plenty of hiding spots, and watch for signs of stress or aggression.
What size tank do Giant Gourami and Malaysian Trumpet Snail (MTS) need?▾
A minimum of 1200 litres (tank length at least 200 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 Giant Gourami and Malaysian Trumpet Snail (MTS) together?▾
Keep the aquarium between 22°C and 30°C. A target of around 26.0°C sits comfortably within both species' preferred ranges.
Are Giant Gourami or Malaysian Trumpet Snail (MTS) aggressive?▾
Giant Gourami is moderately assertive (6/10) 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 Giant Gourami 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 Giant Gourami's territorial behaviour?▾
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Giant Gourami 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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