Java fern issues

Discussion in 'Plant Problems' started by manyoumad, Nov 10, 2010.

  1. manyoumad
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    manyoumad Noob

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    [​IMG]

    Some Leaves (old and new) have these dark patches and holes in them. Any idea why this is happening to my java fern leaves?

    Many other leaves are looking really healthy and strong.

    I'm currently only dosing excel and potassium.

    Another question: Whats the feeling around plecos in planted tanks?
     
  2. Toshi(Walter)
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    Toshi(Walter) Green fingers

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    those dark spots are where you're daughter plants usually grow. and it depends what pleco you're talking about. but thats a topic for the species section
     
  3. shihr
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    shihr Administrator Staff Member

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    well from what i heard, with amazon swords they eat them.. hardier plants like anubias and java fern they tend to leave them alone
     
  4. manyoumad
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    manyoumad Noob

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    I'd still like to know the cause of the dark patches and what I can do to prevent it from happening.

    Found this thread on plecos...
     
  5. Luis Embalo
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    Luis Embalo Valued Contributor

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    They do eat them, suck the green out of them. However Java ferns they leave them alone.

    Are you dosing any nutrients to the water column, or CO2?

    Look at distribution of water and flow around the plant.
     
  6. manyoumad
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    manyoumad Noob

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    I'm only dosing excel and potassium at this stage. Will be ordering a few of Prof's ferts soon so will have better dosing once I have them.

    Flow - here again, the leaves do get a fair amount of flow, but not sure how much they need. I have a penn plax power filter - its pretty old so I cannot remember which model and hence I'm not certain of the flow rate. But there is a fairly good circular flow in the tank.

    A question: Whats the APSA party line on charcoal inserts in filters for planted tanks, some say it removes nutrients, others don't feel it affects this at all?
     
  7. Luis Embalo
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    Luis Embalo Valued Contributor

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    Cool.. no dosing CO2? But the issue may be nutrients.. not enough..
     
  8. manyoumad
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    manyoumad Noob

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    Nope. No CO2 dosing at this stage (only flourish excel). Won't be going the CO2 route at this stage.

    I've reversed the flow in my tank and dropped the power filter a bit lower. The java fern now gets the full flow from the powerhead on the filter, rather than the return flow once its circulated around the tank.
     
  9. manyoumad
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    manyoumad Noob

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    I figured out what filter specs are - its a Penn Plax Cascade 300 Internal Filter with a flow rate of 70gph. Its on a 10g tank - so its moving a fair amount of water.

    I've removed the charcoal insert and added some floss instead.
     
  10. manteroo
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    manteroo Algae harvester

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    Hi

    I have kept Java Fern for over 2 years now with great success. They do however go through ups and downs in their natural growth cycle.

    Just be patient with them. I have some Javas with leave around 30cm in length !!! I also use Flourish Excel. A Fair amount of water flow - they like this.

    Here is a pick from my 1.5m planted setup (also check "My 1.5m Discus Challenge" in Member Setups...........

    [​IMG]
     
  11. manyoumad
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    manyoumad Noob

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    @Manteroo

    Thanks for this feedback - it is fairly early days in this tank, its only been running a few months.

    Your ferns look great by the way!

    Are you dosing anything else in this tank?
     
  12. manteroo
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    manteroo Algae harvester

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    I play it by ear and not scientifically. If they look a bit "tired" I add a bit of Excel. Sometimes I also add the Comprehensive Ferts from Seachem too.

    Also, not too many water changes. Temp = 27 deg.

    I don't know any other values on water etc. I just leave it alone and don't mess with it. Healthy Plants = Healthy Fish = Healthy Plants......

    "We are keepers of water".
     
  13. manyoumad
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    manyoumad Noob

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    My water is around 24 degrees - could this make a difference?

    Too true!
     
  14. Rattail
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    Rattail Algae harvester

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    Jave fern seems to prefer the water a bit on the cooler side. I have Windelov in a 38L nano without a heater. This means the temp varies between 18 and 30deg (winter - summer). No problems.

    8)
     
  15. manteroo
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    manteroo Algae harvester

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    Funny, mine are flourishing @ 27 deg. Then again, I also have some in an outside tank now and they seem fine too ! That tank is not heated.
     
  16. manyoumad
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    manyoumad Noob

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    @Manteroo

    Wow, I've just looked at your 1.5m Discuss journal - you've certainly mastered the art of growing java fern! Looks great!

    I'm busy planning a 3ft tank now and definitely want plenty of java fern in it - I must try get some through the forum because its crazy expensive from the LFS. I'm also keen to try the narrow leaf variety.
     
  17. Maurice
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    Maurice Aquascaper

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    Hi Manyoumad,

    You say that you only dose excel and potasium?
    I am sure that those dark spots and patches are a nutrient deff.

    Get some Seachem Flourish and add that for trace elements, you wil soon notice a big difference.
    About two years ago, I also had a tank with lots of Java's in, and only dosed Flourish with DIY CO2,
    and the ferns were groing like weed. :)

    a Pic of my tank two years ago with the Java's
    [​IMG]
     
    Last edited by a moderator: Apr 11, 2014
  18. Toshi(Walter)
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    Toshi(Walter) Green fingers

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    wow dude! thats really nice
     
  19. manyoumad
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    manyoumad Noob

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    @Morris - wow, awesome tank and thanks for the input. It is clearly nutrient deficiency - plants need a wide range of elements to grow healthy.

    I am probably going to transplant this scape into my 100L once everything is ready. I will also be getting some of Dirks ferts in a few weeks and I will start dosing with those. This should start making the difference.
     
  20. Rattail
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    Rattail Algae harvester

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    It still never ceases to amaze me how you guys just want to keep dosing. and adding stuff.... Go check out my Southeast Asian Setup, it speaks for itself and 4 years later, I have still never added anything except water and fishfood.
     

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