Cryptocoryne undulatus ‘Red’ – This red version of Cryptocoryne undulata grows wild in rivers of Sri Lanka. It is an easy plant, tolerant of very different conditions in an aquarium. Appearance of the plant will partially depend on these conditions. Low levels of light and nutrients will produce a relatively tall, greenish-brown plant of slow growth. Higher levels of light and nutrition, combined with added CO2, will make the plant grow considerably faster producing shorter leaves of a reddish-brown colour.
The Undulate Crypt still grows under low light and without fertiliser, however, it does better under medium lighting and a nutrient-rich substrate. As well as many other Cryptocoryne species, this plant easily propagates by underground runners.
Cryptocoryne undulata is a versatile aquarium plant, best placed in the midground, in higher tanks also in the foreground. It forms extended stands with time, and with its narrow, dark foliage, it is especially suitable for aquascapes in the nature aquarium style.
Just like fish, living plants do best when they are kept in an aquarium that best suits their needs. Selecting live plants that share common water conditions will minimize problems and make it easier for you to maintain and keep your aquarium in tip top shape