This is yet another variety of C. wendtii - a medium-sized, brown Cryptocoryne that grows well and is an easy plant. Leaves above the surface are rusty brown, below the surface they are a chocolate brown.
Planting tip: Keep these plants small and compact by planting in a clay pot. Press the pot directly into the substrate. By limiting the space available for the roots, the plants stay smaller and create an effect similar to a bonsai tree.
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.