Its job in your tank: root feeder and background centerpiece.
A big sword for a big tank.
Rangeri sword forms a large rosette of long leaves, 20–24 inches or more tall and nearly as wide, a classic centerpiece at the back of a larger tank.
How it fits the Father Fish Method
Father Fish has kept fish for more than 70 years, and his method has helped thousands of aquarists build tanks that run on biology instead of bottles. A layer of living soil sits under a sand cap and feeds rooted plants for years. You plant heavily on day one and skip the CO2, liquid fertilizers and root tabs. Then the plants, the soil and the tiny life in them balance the tank. Large swords are heavy root feeders, exactly what living soil is built for. They need no tab.
| Height | Width | Leaf Type |
|---|---|---|
| 20–24 inches or more | nearly as wide as height | long, narrow leaves forming a rosette |
FAQ
Can Rangeri sword be grown in a small tank?
No, Rangeri sword requires a large tank due to its size and root development. It is best suited for tanks with 50 gallons or larger.
Does it require CO2 or liquid fertilizers?
No, Rangeri sword is a heavy root feeder and thrives in living soil without CO2 or liquid fertilizers.
How long does it take to establish in a tank?
Establishment can take several weeks. The plant grows slowly at first but develops a strong root system over time when planted in living soil.

Oliver Grant –
Planted it in a 70-gallon tank with living soil on day one. After four weeks, it had grown over 20 inches tall with a dense rosette. No fertilizers or CO2 needed. The plant is now a focal point and helps stabilize the water chemistry.
Sonia Terry –
It’s a striking plant with long, elegant leaves. Grew well in a well-lit tank with good water flow. Took about six weeks to show full growth. Very satisfied with the results.
Frank Langdon –
Used it as the centerpiece in a large aquarium. It’s strong and grows steadily without any added nutrients. The roots anchor well in the living soil and help maintain water balance.