Cryptocoryne undulatus Green is a delightful looking plant with glossy green pointy leaves and fine dark stems. This is a familiar plant with Aquascapers as they can be used as a foreground plant when creating a sandy foreground which is particularly popular at the moment in aquascaping.
As with most crypts this plant needs little attention and will happily grow under low lighting.
Understanding Crypt melt - all Cryptocoryne species require stable water parameter and light conditions. Once planted, Crypts should not be moved otherwise it can trigger what is called Crypt melt. If a Crypt has a significant change of environment (ph, kh, gh, lighting intensity or duration, root disturbance etc), Crypt melt can be triggered. The leaves start to disintegrate as the plant prepares for its new environment - DO NOT WORRY! Your plant will begin to grow back over the next 30 days (sometimes sooner, sometimes later) - it's still very much alive and busy getting ready for the growth of new leaves. In the meantime, any decaying leaves should be trimmed and recycled in a compost bin.