View Full Version : Black spots on Anubias and Java fern leaves.
01-27-2010, 03:43 AM
Anubias and Java fern leaves in tank having a lot of black spots. How can I remove it.
01-27-2010, 04:14 PM
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.
01-27-2010, 09:06 PM
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
01-28-2010, 01:34 AM
01-29-2010, 08:55 PM
if, after having a good co2 the fern leaves still black, then increase 5ppm your dose of K.
01-30-2010, 03:54 AM
CO2 then K
02-04-2011, 02:11 PM
hello what you mean K ?? YOU MEAN POTASIOUM ??
i have the same problem for 3 months now
02-04-2011, 03:00 PM
Yes, K is potassium.
02-04-2011, 06:03 PM
low CO2 in combination with high light.
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