Java Fern condition

[Stan Z]

Can you guys tell from the photo if these leaves look okay? Some of them don’t look good to me.

[Ken Burke]

Here is my best guess….

[lefty o]

a little bit of algae, but otherwise that is a healthy looking plant.

[Stan Z]

I tried rubbing it off with my fingers. No luck. I looks like the edges of the leaves are drying up.

[Guppysnail]

How long have you had this fern?  I often buy Java ferns that are grown above water for expediency and to avoid pests and algae. When I put them in the tank a good portion of the leaves over a good amount of time blacken some sending baby plants out. The leaves grown above water cannot efficiently work submerged so the rhizome grows new slightly different leaves that are more efficient at working underwater or new baby plants that are grown better suited for underwater growth. 
 

Long wind shortened…if that plant was grown above water prior to purchase it looks completely normal for the conversion process. 

[Stan Z]

I’ve had this fern almost a month. Bought it through aquarium co-op. I’m learning. Thanks for the advice.