
Twostripe pencilfish
Nannostomus digrammus
Lebiasinidae, Pyrrhulininae

Nannostomus digrammus
Lebiasinidae, Pyrrhulininae
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Worked out from its length, as we don’t yet know what size tank it should have. Do you? Sign up and tell us in the app.
Try other measures in the appLives wild in Brazil and Guyana.
Why "one cm of fish per liter" falls short, and what adult size, schools, territory and swimming zones mean for how many fish a tank can hold.
Soft, acidic water, subdued light, sand, roots and fallen leaves: how to set up a biotope aquarium from the Amazon and the rivers around it.
From the store to the tank: how to get the fish used to your water, why you should add only a few at a time, and what to watch for in the first few days.
Why new fish should live in a tank of their own for a few weeks before they move in, what you need, and what to look for.