Black spots on Anubias and Java fern leaves.

Tom Barr

Founder
Staff member
Administrator
Jan 23, 2005
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Generally a CO2 issue, it has nothing to do with EI.

I've raised and sold more Java fern as a hobbyists than most over the years, Anubias as well.

Neither plant is demanding as far nutrients, but low light and good CO2 make them grow very nicely.

Regards,
Tom Barr
 

jonny_ftm

Guru Class Expert
Mar 5, 2009
821
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+1

Over one year keeping anubia and java fern, since following Tom advices on CO2, I have no longer to prune leaves because of black spots and I have no issues on them. Just shade them also with floating plants if needed
 

TheKillHaa

Prolific Poster
Oct 31, 2007
94
0
6
if, after having a good co2 the fern leaves still black, then increase 5ppm your dose of K.

regards.
 

candsautoservice

Junior Poster
Feb 4, 2011
1
0
1
hello what you mean K ?? YOU MEAN POTASIOUM ??
i have the same problem for 3 months now
THANKS
 
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