Cryptocoryne undulata

Cryptocoryne undulata in my aquarium
Cryptocoryne undulata shortly after I bought it

Synonymies
Cryptocoryne willisii

Description
Cryptocoryne that's easy to keep in the aquarium that can reach a height of 10 to 25 cm. The leaves of the plant can be colored from green to dark brown.

My experiences
At this time (17-06-01) I  have this crypto in my aquarium for more than half a year. The second picture on this page shows how this plant looked after I bought it. The first picture shows how the plant looked after it had been for about two months in my aquarium. Within two weeks the plants already had formed a number of new leaves. After 2.5 months the plants formed the first runner. But after I started using the set "Dupla Algo Control Delta" a large number of leaves died of. This was probably due to the coloration of the water caused by the earlier mentioned set. After a few days the plant stopped losing leaves and after about 5 weeks the plant looked fully recovered and had a large number of new leaves and a new runner. After I had removed the set Algo Control Delta from my aquarium this plant has lost a few leaves a couple of times that in my opinion was caused by a change of the light the plant receives. Personally I think that this plant does best with a not too large amount of light. Despite this plant loses some leaves so now and than it has proven to be an easy plant to held in my aquarium and also has a good resistance to (pointed) algae.

Remark
I'm not sure the name Cryptocoryne undulata is the right one for this plant. I bought this plant as Cryptocoryne x willisii, but when it started to form brown colored leaves I assumed the plant was a Cryptocoryne wendtii. A short time later I found that Cryptocoryne undulata was formerly called Cryptocoryne willisii Baum, which can explain the name tag the plant had in the shop. Therefore this plant is now described as C. undulata, but I'm still not entirely sure about this name.

Place and lighting in my aquarium
This plant stands on the left-front of my aquarium. The lighting I have used for this plant has varied between 0.42 Watt/liter standard TL lighting (2*18 Watt) till 0.63 Watt/liter standard TL lighting (3*18 Watt).
 
Foot-note
The pictures on this page are taken from my own aquarium.

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