Aquarium plant grown from tissue culture in sealed beaker.

This red version of Cryptocoryne undulata grows wild in rivers in Sri Lanka.

It is an easy plant that can thrive in very different conditions in an aquarium.

The appearance of the plant is partly dependent on these conditions. Low amounts of light and fertilizer will make the plant relatively tall, green-brown and slow-growing.

Higher amounts of light and fertilizer combined with the addition of CO2 will make the plant grow significantly faster with shorter leaves of a red-brown color.