Questions concerning Java ferns..... - The Planted Tank Forum
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post #1 of 5 (permalink) Old 07-07-2006, 03:06 AM Thread Starter
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Questions concerning Java ferns.....

I had a quick questions about my java ferns. The leaves on a few of the plants seem to be getting black irregular spots; some leaves have small holes and overall look poor. I have notice new leaves on a few of the plants so I think they are still growing. All the ferns are attached to the bogwood in my tank. Any suggestions?

10 gallon planted tank
6 gold tetras
2 pieces of bogwood
3 java ferns
3 anacharis
1 anubias petite nana
1 anubias coffeeolia
8 dwarf sags
1 Red Wendtii

ammonia: 0ppm
nitrite: 0ppm
nitrate: less than 5ppm?
ph: 7.4

30 watts compact flourescent
10 hours of light
cycled with bio-spira on 6/23

Just recently started to add flourish and flourish excel and purchased flourish potassium and nitrogen from Big Al's online. Did I forget anything? I do not have any other test kits but would like to know what others would be useful. Thanks!
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post #2 of 5 (permalink) Old 07-07-2006, 03:33 AM
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add more nitrate and pottasium and prune off any crappy looking leaves

30 gallon pita...102watts..pressurized co2 ...jbj substrate...xp-2... inline c-02 reactor...turbo twist uv
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post #3 of 5 (permalink) Old 07-07-2006, 04:07 AM
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Java ferns really soak up nitrates, so you want to dose more nitrogen as well as dosing potassium and phosphates. Java ferns really do love nitrogen.

Even though they are supposed to be an easy plant to grow, but I used to have a terrible time getting them to grow. They are hard to actually kill but they can take some work to get looking nice.
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post #4 of 5 (permalink) Old 07-07-2006, 05:37 AM Thread Starter
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Thanks for the information. I knew there was something I forgot to order from Big Al's. I'll try to pickup some phosphorus at the LFS. They have a great selection but high prices. What are some of the effects of low nitrates?
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post #5 of 5 (permalink) Old 07-07-2006, 08:37 AM
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I bought a new book and read something about java fern the other day. Since it propogates by adventitious plantlets, the plantlets develop underneath the "mother leaf". As the "mother leaf" deteriorates, this will allow the plantlets to drop off easier. I never experienced this since I usually just removed the plantlets by hand and never allowed them to drop off on their own. Also stated is that if java fern receives too much light it will turn icky but mine are under very high light and I have never noticed this. If you notice small plantlets occuring off of the roots then this could just be the mother leaf dying. If not, I would suspect a deficiency.
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