Can cardinal tetras and nerite snails live together?
With care
Cardinal tetras and nerite snails can share a tank, but there is something to watch.
Why
- Their pH ranges only meet at 7.0, which leaves no margin.
What each one needs
| Cardinal tetra | Nerite snail | Both | |
|---|---|---|---|
| Temperature | 73–84°F (23–29°C) | 72–78°F (22–26°C) | 73–78°F (23–26°C) |
| pH | 5.0–7.0 | 7.0–8.5 | 7.0–7.0 |
| Minimum tank | 20 gal (76 L) | 5 gal (19 L) | 20 gal (76 L) |
| Keep at least | 6 | 1 | |
| Adult size | 2 in (5.1 cm) | 1 in (2.5 cm) |
The smallest tank for both
A 20 gallons (76 L) tank holds 6 cardinal tetras and 1 nerite snail at about 33% of its stocking limit, which leaves room for more.