plant id pls

[eriond]

got this plant for quite some time but never really know what is it. can someone help id pls.
grows about 20cm tall
red under leave n dark green upper
leave is 1 cm by 10cm approx
propogate by runners

http://www.arofanatics.com/members/eriond/plantidpls/

[budak]

It's a Cryptocoryne species.... my guess is a narrow leaf form of C. undulata.

[eriond]

thanks budak,
let's see if i can find more info on that.