Java ferns not lookin good... HELP - The Planted Tank Forum
 
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post #1 of 3 (permalink) Old 11-22-2006, 10:58 PM Thread Starter
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Java ferns not lookin good... HELP

Hi
I have a low light (1.5wpg) planted discus tank,kept at 85f.(NO CO2)

Before it was a discus tank,the same plants where kept at 76f as a community tropical tank.

Since the discus set up im now Useing 100% ro water,which then i add RO right too,to get my GH back up to 2gh.
Then i add ph stable to raise my KH

Now my problem is....my java ferns arnt doing very well (see pic)...thay are going brown and holes are appearing in them.

Could this be a nutrient deficiency ??

The RO right contains traces and twice a week i add flourish.

MY n03 is 10ppm p04 is 1ppm

should i BE ADDING k?..but bearing in mind this is a low light tank.


OR.....could this be due to the rise in temp from what thay have been kept in 76f to 85f?

also is it safe to add K to a discus set up?

MANY THANKS
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post #2 of 3 (permalink) Old 11-22-2006, 11:50 PM
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My guess the temp is too high. I have a hard time with this plant in the summer.
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post #3 of 3 (permalink) Old 11-23-2006, 01:42 AM
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I'm willing to bet it is a Magnesium deficiency. I had this same problem a year ago with my Java Ferns. Your pictures look almost exatly like mine. After about a year of good growth, they started looking like this. I had two huge java ferns, but over the course of a number of months, while I was trying any remedy I could think of, they almost completely rotted away. Finally, I started adding about 1/4 to 1/2 tsp epsom salt (magnesium sulfate) with each water change. Shortly there after the java ferns starting growing well again, without any rotting. They have been doing fine since.

I think magnesium is a micronutrient that they typically have a decent amount in storage. However, after a long time of mag deficient water, they finallly used up their stores.
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