Tank mate check
Can Cardinal Tetra and Discus live together?
Verdict: No
No. Cardinal Tetra and Discus fail at least one check below, so keep them in separate tanks.
Why
The same temperament, water and known-conflict checks the MyAquaLog compatibility tool runs.
- Both species are peaceful. Cardinal Tetra is rated peaceful, Discus peaceful.
- No temperature overlap (73-81°F vs 82-88°F).
- pH overlap 5.5-6.5.
- Discus sets the floor at 50 gallons on its own. Size up from there for both groups.
- Keep Cardinal Tetra in a group of 6 or more.
- Keep Discus in a group of 4 or more.
Side by side
| Cardinal Tetra | Discus | |
|---|---|---|
| Minimum tank | 10 gal | 50 gal |
| Temperature | 73-81°F (23-27°C) | 82-88°F (28-31°C) |
| pH | 5-6.5 | 5.5-6.5 |
| Temperament | Peaceful | Peaceful |
| Swim level | Middle | Middle |
| Group size | 6 or more together | 4 or more together |
Check your own tank
This page compares two species on their own. Your full stock list, tank size and bioload change the answer, so log your own tank.
Start a tank logStocking guide
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Other pairings
More Cardinal Tetra pairings
- Amano Shrimp with caution
- Angelfish with caution
- Betta Fish with caution
- Bristlenose Pleco yes
- Cherry Shrimp with caution
- Corydoras Catfish yes
- Dwarf Gourami with caution
- Goldfish no
- Guppy no
- Harlequin Rasbora yes
- Kuhli Loach yes
- Molly Fish no
- Mystery Snail no
- Neon Tetra yes
- Nerite Snail no
- Oscar Fish no
- Otocinclus yes
- Platy no
- Plecostomus with caution
- Rummy Nose Tetra yes
- Siamese Algae Eater yes
More Discus pairings
- Amano Shrimp no
- Angelfish with caution
- Betta Fish no
- Bristlenose Pleco no
- Cherry Shrimp no
- Corydoras Catfish no
- Dwarf Gourami no
- Goldfish no
- Guppy no
- Harlequin Rasbora no
- Kuhli Loach yes
- Molly Fish no
- Mystery Snail no
- Neon Tetra no
- Nerite Snail no
- Oscar Fish no
- Otocinclus no
- Platy no
- Plecostomus no
- Rummy Nose Tetra no
- Siamese Algae Eater no