[Help dying java fern]

 

Appreciate the feedback James. I'll read up on that link again. I think I may have read that some time ago. 

[Help dying java fern]

My two java ferns arrived alive and well and turning brown in first week. I added 2 pumps of easy green (20 gal. tank) This tank has been established for years with fish. I recently started adding plants 6 months ago. I used fishing line to tie root to drift wood. Should I pull them out and trim root to help it receive the nutrients?

My parameters are: GH:75, Nitrite:0, Nitrate:25, chlorine:0, KH:40, PH:7, amonia:0,  Temp is 80~82°F

I use API for PH & amonia test kit & aquacare test strips.