Sewellia lineolata
Sewellia lineolata
The Sewellia lineolata (Sewellia lineolata) is a peaceful fish that's a good step up once you have a little experience. Give it a tank of at least 80 litres (21 US gallons), water held at 64-75°F, and a pH of 6.5-7.5. Always keep a group of at least 4 - they feel safest in numbers.
Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.
Natural distribution
Southeast Asia
- East & Southeast Asia
Regional colours match the stocking calculator's origin map.
Sewellia lineolata Tank Setup
Give them at least 80 litres (21 US gallons) and a tight-fitting lid, since many loaches are escape artists. Keep the water at 64-75°F with a pH around 6.5-7.5; soft sand suits the ones that like to burrow. Always keep a group of at least 4 of their own kind - kept alone or in pairs they tend to turn shy, nippy, or wash out in colour.
What Do Sewellia lineolatas Eat?
They're bottom feeders, so give them sinking wafers, tablets, or frozen treats like bloodworm once the lights go down. Flakes that never reach the bottom leave them hungry even when the tank looks well-fed.
Sewellia lineolata Tank Mates
Reticulated hillstream loach; requires very strong flow and high oxygenation. Cool water. Grazes biofilm. The Sewellia lineolata is peaceful, which is the first thing to weigh up when you choose tank mates. It's a shoaling fish, so settle a group of 4 or more of its own kind before adding anything else - a stressed, lonely fish is far more likely to nip or hide. Before you buy, run your full stocking list through our stocking calculator. It weighs temperament, adult size, and water needs together, which a single species page can't do on its own.
Are Sewellia lineolatas Good for Beginners?
Doable once you test water regularly and catch problems before fish look sick. If this is your first tank, pick something more forgiving and come back later.
Sewellia lineolata - frequently asked questions
What size tank do Sewellia lineolatas need?
Sewellia lineolatas need a tank of at least 80 litres (21 US gallons). A bigger tank is always easier to keep stable, and gives them more room to settle in and behave naturally.
How many Sewellia lineolatas should I keep together?
Keep a group of at least 4. Sewellia lineolatas are a shoaling species and become stressed, lose their colour, or hide when kept singly or in pairs.
What water parameters do Sewellia lineolatas need?
Keep them at 64-75°F with a pH of 6.5-7.5, steady rather than chased to an exact figure. In a cycled tank, ammonia and nitrite should both read 0 ppm, with nitrate kept low through regular water changes.
What do Sewellia lineolatas eat?
Sewellia lineolatas are bottom feeders. Give them sinking wafers, tablets, and frozen foods that settle on the substrate, ideally after the lights go off. Feed small amounts once or twice a day, and remove anything they don't eat.
Are Sewellia lineolatas good for beginners?
Sewellia lineolatas are best for keepers with a little experience. They are manageable once you test water regularly and catch problems early; a complete beginner may prefer something more forgiving first.
Common mistakes with Sewellia lineolatas
- Buying fewer than 4 - Sewellia lineolatas need a proper school to feel secure; isolated individuals hide, fail to colour up, or become stressed.
Building a community? Run the full list through the stocking calculator before you add anything else.
Great tank mates
Chosen from temperament, overlapping temperature/pH bands, plausible minimum tank footprints, and size versus yours in App-aquatic data. Hobby nuance always wins - verify stocking and temperament before purchasing.
Fish to avoid mixing with Sewellia lineolatas
These well-known species are commonly sold alongside this fish but are not recommended tank mates - verify before purchasing.
- OscarPredator - Oscar will eat or injure smaller tank mates
- AxolotlPredator - Axolotl will eat or injure smaller tank mates
- Betta (Male)Predator - Betta (Male) will eat or injure smaller tank mates
