Can Mystery Snail and Penguin Tetra Live Together?
Yes, Mystery Snail and Penguin Tetra are ideal tank mates. Both species share compatible water parameters and peaceful temperaments, making them well-suited for a community aquarium. A minimum tank size of 90 litres is recommended.
At a Glance
Behaviour & Temperament
Mystery Snail is a peaceful species (0/10), while Penguin Tetra is peaceful (2/10). This modest difference means Penguin Tetra may occasionally assert dominance over Mystery Snail.
Mystery Snail and Penguin Tetra both frequent the Middle (Open Water) and Top (Surface) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.
Worth noting: Mystery Snail is a known jumper, so a tight-fitting lid is essential.
Water Parameters
The safe temperature window for both species falls between 22°C and 28°C. Aim for the midpoint of this range (around 25.0°C) for optimal comfort.
Both fish can tolerate a pH between 7 and 7.5. Maintaining a stable value within this band is more important than hitting an exact number.
For general hardness, the shared comfort zone is 8–15 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.
Tank Setup
To house Mystery Snail and Penguin Tetra together, plan for an aquarium of at least 90 litres with a minimum length of 60 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: Established Algae (Otocinclus), Plants - Densely covered, Plants - Floating. 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
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Frequently Asked Questions
Can Mystery Snail and Penguin Tetra live together?▾
Yes. Mystery Snail and Penguin Tetra are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.
What size tank do Mystery Snail and Penguin Tetra need?▾
A minimum of 90 litres (tank length at least 60 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 Mystery Snail and Penguin Tetra together?▾
Keep the aquarium between 22°C and 28°C. A target of around 25.0°C sits comfortably within both species' preferred ranges.
Are Mystery Snail or Penguin Tetra aggressive?▾
Mystery Snail is peaceful (0/10) and Penguin Tetra is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Mystery Snail and Penguin Tetra need?▾
Both species overlap in the 7–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.
Will Penguin Tetra nip Mystery Snail's fins?▾
Penguin Tetra is a known fin nipper. If Mystery Snail has long or flowing fins, there is a real risk of fin damage. Keeping Penguin Tetra in a larger group can help redirect nipping behaviour toward conspecifics.
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