narrow leaf java ferns

got this java fern and was thinking it may be a narrow leaved variety but am not to sure.i have another type of jave fern and was hoping this was a differnt type.maybe someone could chime in on some growth varients as this may be the same type i already have.[img][/img]

this ended up being the same microsorium plant as many of the others i have seen most likely from the same source just grown under differnt conditions.i beleive that the ferns i am looking for are called tropica for there varients name.way cool leaf structure and i am sure it would look awesome next to any plant especialy other types of microsorium or anubius.

i got this windelov a couple of months back from a friend and it has really grown some leaf matter.almost trippled in size..it sometimes has what appear to be burned tips but the new growth is always looking good and once again i am not dosing anything as far as fertilizer so if i can ID the porblem i am sure i can see even more growth.[img][/img]