Can Cardinal Tetra and Ramshorn Snail Live Together?
Yes, Cardinal Tetra and Ramshorn Snail 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 66 litres is recommended.
At a Glance
Behaviour & Temperament
Cardinal Tetra is a peaceful species (1/10), while Ramshorn Snail is peaceful (0/10). This modest difference means Cardinal Tetra may occasionally assert dominance over Ramshorn Snail.
Cardinal Tetra and Ramshorn Snail both frequent the Middle (Open Water) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.
Water Parameters
The safe temperature window for both species falls between 24°C and 29°C. Aim for the midpoint of this range (around 26.5°C) for optimal comfort.
Both fish can tolerate a pH between 7 and 7. Maintaining a stable value within this band is more important than hitting an exact number.
For general hardness, the shared comfort zone is 8–8 dGH. Regular testing will ensure conditions stay within this range.
Tank Setup
To house Cardinal Tetra and Ramshorn Snail together, plan for an aquarium of at least 66 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: Leaf Litter/Blackwater, Driftwood (Digestion/Hiding), Plants - Densely covered, Established Algae (Otocinclus). 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.
Frequently Asked Questions
Can Cardinal Tetra and Ramshorn Snail live together?▾
Yes. Cardinal Tetra and Ramshorn Snail are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.
What size tank do Cardinal Tetra and Ramshorn Snail need?▾
A minimum of 66 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 Cardinal Tetra and Ramshorn Snail together?▾
Keep the aquarium between 24°C and 29°C. A target of around 26.5°C sits comfortably within both species' preferred ranges.
Are Cardinal Tetra or Ramshorn Snail aggressive?▾
Cardinal Tetra is peaceful (1/10) and Ramshorn Snail is peaceful (0/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Cardinal Tetra and Ramshorn Snail need?▾
Both species overlap in the 7–7 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.
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