Melon Sword Aquatic Plant (Echinodorus osiris)
A bold and elegant freshwater aquarium sword plant admired for its large, rounded leaves and striking color contrast. New growth often emerges in shades of bronze, red, or copper before maturing into lush green foliage, creating a dramatic and constantly evolving centerpiece for planted aquariums.
One of the most eye-catching plants available, the Melon Sword is ideal for medium to large tanks where it can fully display its impressive size and form. Hardy and adaptable, it thrives in a wide range of aquarium conditions, making it suitable for both beginners and experienced aquarists who want a statement plant without complicated care requirements.
| Key Features |
|---|
| Plant Type: Sword Plant |
| Scientific Name: Echinodorus osiris |
| Light Requirement: Moderate to high |
| Water Temperature: 18–28°C |
| Hardiness: Hardy and adaptable |
FAQ
What is the typical growth rate of the Melon Sword plant?
The Melon Sword grows steadily, with new growth appearing in bronze, red, or copper tones before turning to mature green. Growth rate varies slightly depending on light, water parameters, and tank conditions.
Does the Melon Sword require special substrate or fertilization?
It grows well in standard aquarium substrates. While it does not require special fertilization, regular nutrient supplementation supports healthier growth and vibrant coloration.
Can the Melon Sword be kept in a small tank?
It is best suited for medium to large tanks where it can fully display its size and form. In smaller tanks, it may not reach its full potential or maintain its striking appearance.

Rachel Manning –
The Melon Sword has transformed my tank instantly. The color change from copper to green is stunning and adds a dynamic look. It grows well even in moderate lighting and requires minimal maintenance. A must-have for any planted aquarium.
Ella Lawrence –
I was hesitant at first because of the size, but it fits perfectly in my 60-liter tank. The new growth is vibrant and the plant stays healthy even with regular water changes. Slightly more demanding than other plants in terms of light, but worth it.
Molly Coleman –
Great color variation and structure. The plant develops a strong presence in the tank and looks impressive even after a few months. Easy to care for and grows without issues in my setup.