Cryptocoryne undulatus ‘Red’ – Tissue Culture by Tropica
Aquarium plant grown through tissue culture in a closed cup.
This red variant of Cryptocoryne undulata is native to rivers in Sri Lanka.
It is a hardy plant that adapts well to a range of aquarium conditions. The final appearance may vary depending on light, nutrient levels, and CO2 availability.
Under low light and low nutrients, the plant grows slowly and develops tall, greenish-brown leaves. With higher light intensity, increased nutrients, and added CO2, growth accelerates and the leaves become shorter and take on a reddish-brown hue.
| Condition | Plant Appearance |
|---|---|
| Low light, low nutrients | Tall, greenish-brown, slow growth |
| High light, high nutrients, with CO2 | Shorter leaves, reddish-brown color, faster growth |
FAQ
What is the origin of this Cryptocoryne undulatus ‘Red’ plant?
This plant is native to rivers in Sri Lanka and grows wild in its natural habitat.
How does light affect the color and growth of this plant?
Under low light and low nutrients, the plant grows slowly with greenish-brown, tall leaves. Higher light levels, combined with nutrients and CO2, promote faster growth and produce shorter, reddish-brown leaves.
Is this plant suitable for beginners?
Yes, it is known for its tolerance to varying conditions and is considered easy to care for in an aquarium setup.

Grace Butler –
The plant arrived healthy and vibrant. After a few weeks in my tank with moderate lighting, the leaves started turning reddish-brown. It’s very adaptable and has grown steadily without any issues.
Luke Ogden –
I was expecting a more consistent red color, but the plant responded well to increased lighting and CO2. It’s now a nice addition to my planted tank with a balanced look.
Leah Edmunds –
Grew quickly in my aquarium with regular lighting. The color change from green to reddish-brown was noticeable after a month. Very satisfied with the plant’s resilience and appearance.