Sailfin Marble Achara Catfish (Leiarius Pictus)
The Sailfin Marble Achara Catfish (Leiarius pictus) is a large, impressive South American freshwater fish known for its distinctive marbled or spotted pattern and large, flowing fins. Also known as the Marbled Pim or Pictus Catfish, it’s a popular choice for experienced aquarists due to its size and predatory nature.
Key Features
- Distinctive marbled or spotted pattern
- Large, flowing fins that create a striking visual presence
- Native to South American freshwater environments
- Predatory behavior, suitable for experienced aquarium keepers
Specifications
| Feature | Value |
|---|---|
| Scientific Name | Leiarius pictus |
| Common Names | Sailfin Marble Achara Catfish, Marbled Pim, Pictus Catfish |
| Origin | South America |
| Size (Adult) | Up to 12 inches (30 cm) |
| Water Temperature | 72°F to 82°F (22°C to 28°C) |
| Water pH | 6.0 to 7.5 |
| Water Hardness | 2 to 10 dGH |
FAQ
What is the typical size of a Sailfin Marble Achara Catfish when fully grown?
The adult size of a Sailfin Marble Achara Catfish can reach up to 12 inches (30 cm).
Is this catfish suitable for beginner aquarium keepers?
No, this species is best suited for experienced aquarists due to its size, predatory nature, and specific water parameter requirements.
What kind of environment does the Sailfin Marble Achara Catfish prefer?
It thrives in South American freshwater environments with stable water conditions, moderate to high water flow, and ample hiding spots.

Trevor Mitchell –
This catfish is a stunning addition to my aquarium. The marbled pattern is very eye-catching and the large fins create a dynamic presence. I’ve had it for three months and it’s active and healthy. I do need to provide a spacious tank with plenty of cover and stable water parameters.
Austin Peake –
Great fish with a unique appearance. It’s not for beginners, but once you have the right setup, it’s a rewarding species. I keep it in a 75-gallon tank with strong filtration and a consistent temperature. It’s active and doesn’t seem stressed.
Phil Ellison –
The fish arrived healthy and has adapted well to my tank. The coloration is vibrant and the fins are fully developed. I’ve maintained stable water conditions and it’s been very active since setup. A true centerpiece for a larger aquarium.
Christopher Poole –
It’s a beautiful fish, but I found it quite aggressive toward smaller fish. I had to remove a few smaller species. I’m still learning how to manage its behavior in a community tank.
Molly Stewart –
I’ve kept this fish for six months now and it’s thriving. The tank setup is large, with plenty of driftwood and caves. It’s not shy and enjoys exploring. The marbled pattern is especially striking under soft lighting.