Lined barb
Striuntius lineatus
Also known as Striped barb, Puntius lineatus, Barbus lineatus
Care at a glance
- Temperature
- 73–81°F (23–27°C)
- pH
- 5.0–6.5
- Adult size
- 2 in (5 cm)
- Minimum tank
- 20 gal (75 L)
- Temperament
- Peaceful
- Social behavior
- Schooling
- Swim level
- Middle
- Difficulty
- Medium
- Breeding
- Hard
- Rarity
- Rare
- Origin
- Found in blackwater streams, swamps, and peat forests of the Malay Peninsula, Sumatra, and Borneo.
- Family
- Cyprinidae
Overview
Keep lined barbs in a shoal of at least eight in a tank of 75 litres or more, with soft, acidic blackwater at 23 to 27 C and a pH of 5.0 to 6.5. Alder cones, leaf litter, and gentle filtration through peat help hold the low pH they need. Feed small flakes, micropellets, and frozen daphnia, cyclops, and bloodworm. This is a fish for a stable, mature blackwater tank rather than a brand new setup.
In the wild
The lined barb lives in soft, tea-colored blackwater across the Malay Peninsula and the Greater Sunda Islands. These are shaded, acidic waters stained by decaying leaves, with very little dissolved mineral content. The fish carries several thin dark stripes along a slender pale body. It is a peaceful shoaling barb that needs stable, soft water to do well.
Good to know
Once placed in Puntius as Puntius lineatus, the species was moved to the genus Striuntius in a 2013 reclassification of the old barb group. It is sometimes confused in shops with other striped barbs such as Desmopuntius johorensis. The thin continuous stripes, rather than blotches or bars, separate it from most look-alikes.
Did you know
The soft acidic water it needs makes it a poor choice for hard tap water, but in a proper blackwater tank it is a hardy and long-lived shoaling fish.
Where to buy
Some links may not be the exact species or variety.
- Dan's Fish Freshwater fish, shrimp and snails with a live arrival guarantee
- The Wet Spot Tropical Fish Large freshwater selection from a longtime Portland fish store
…or ask your local fish store.
Appears in
Freshwater fish · Barbs, danios & rasboras · Schooling fish · Community fish
Keeping Lined barb?
Track water tests, reminders and stocking fit.
Related species

Cherry barb
Puntius titteya2 in (5 cm)20 gal (75 L)72–81°F (22–27°C)
Five-banded barb
Desmopuntius pentazona2 in (5 cm)20 gal (75 L)73–81°F (23–27°C)
Harlequin rasbora
Trigonostigma heteromorpha2 in (5 cm)15 gal (55 L)72–82°F (22–28°C)
Stoliczka's barb
Pethia stoliczkana2 in (5 cm)20 gal (75 L)64–79°F (18–26°C)Cuming's barb
Pethia cumingii2 in (5 cm)16 gal (60 L)72–81°F (22–27°C)Graceful rasbora
Trigonopoma gracile2 in (5 cm)16 gal (60 L)72–79°F (22–26°C)