Black ferns?

[Lady Hobbs]

I've gotten black leaves on my ferns, cut off the black leaves and got a whole bunch of new stuff. Now the new stuff has also turned black. Not much to cut off this time as they are only 2".

I've heard they prefer a higher pH but I have high pH.

[smaug]

Java ferns?

[Lady Hobbs]

yupper....guess I thought you could read my mind.

[Deleted User]

Black leaves on Java ferns is caused by a nutrition deficiency some where. :ssmile:

[MCHRKiller]

Agreed, the deficiency is most likely nitrogen or iron. Ferns do most of their nutrient absorbtion throughout the leaves so they do need some water column ferts available to them.

[Lady Hobbs]

That you ladies. Mucho appreciated.

[dmagerl]

My ferns dind grow much and developed black spots on their leaves that eventually grew bigger and bigger and eventually punched through, leaving the leaves skeletonized.

After a single dose of Flourish (not Excel), new growth started and the leaves turned a healthy green. Its been about 2 months now and the difference in the plant is amazing.

[Algenco]

I've gotten black leaves on my ferns, cut off the black leaves and got a whole bunch of new stuff. Now the new stuff has also turned black. Not much to cut off this time as they are only 2".

I've heard they prefer a higher pH but I have high pH.


surely those aren't the 12-14 java ferns I gave you?

my water is devoid of iron and the java looks good, maybe nitrogen?

[Taurus]

surely those aren't the 12-14 java ferns I gave you?

my water is devoid of iron and the java looks good, maybe nitrogen?

Yeah, I'm guessing lack nitrogen, too.

Bet this helps:

http://www.seachem.com/Products/product_pages/FlourishNitrogen.html

[Lady Hobbs]

Could be and guess I will have to try some.