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New leaves on elodea / anubias are small...

Discussion in 'General Plant Topics' started by koraldon, Jan 10, 2010.

  1. koraldon

    koraldon Junior Poster

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    Hi,
    I have noticed that new growth on my elodea and anubias have small length (third of the length)
    The other plants are the same - hygrophilia , amazon sword, crypts, cabomba...

    I fertilize excel every day, flourish and pottasium twice a week
    aquarium is Juwel Rio125 with 4 18W bulbs, 8 hours of lighting.
    Water changes every two weeks.
    Nitrate - 10ppm
    Phospate -2 ppm


    Am I missing something?

    Thanks in advance for your advice.
     
  2. BigFlusher

    BigFlusher Prolific Poster

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    I have seen this I generally have associated the smaller leaves with too much light. Almost like the plant is trying to grow too fast.

    On the other hand the nitrates seem low...

    Joe
     
  3. Gerryd

    Gerryd Plant Guru Team
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    Hi,

    IMO Way too much light and no c02....It is only 30 gals or so...and 64 watts

    I would remove 2 of the bulbs to start with but keep a good spread of light over the tank...

    The high light will REQUIRE a high demand for c02 and other nutrients which are not provided, causing limitation issues.

    What type of substrate?

    Give a couple weeks for the plants to adjust to the new lighting levels....

    Hope this helps.
     
    #3 Gerryd, Jan 10, 2010
    Last edited by a moderator: Jan 10, 2010
  4. koraldon

    koraldon Junior Poster

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    Hi Gerry,
    So you recommend to reduce the ligth to 48W ?
    the aquarium is 125 liter net, 146 liter gross

    The substrate is simple with some tetra initialsticks. sadly i didn't put in anything fancy.

    Thanks
     
  5. DaBub

    DaBub Guru Class Expert

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    I am sadly, not Gerry, just a poor barefooted pilgrim, waif of a girl. :(

    So what I say may be of no interest. :eek:

    The light is high, reducing it will help.

    As uncle Joe points out your nutrient levels seem low. With little help from the substrate you need more nutrients in the water column.
     
    #5 DaBub, Jan 12, 2010
    Last edited by a moderator: Jan 12, 2010
  6. Gerryd

    Gerryd Plant Guru Team
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    Hi,

    Yes, I recommend lowering the light to 36w (2 x 18w) and see how that goes.

    If you are NOT using c02 or excel this still may be too much but you will have to see how it goes.

    Are you planning on c02 or excel?
     
  7. Gerryd

    Gerryd Plant Guru Team
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    Dabub,

    Being Gerry is not all that you may have heard:)

    Why would you want to be me?????? LOL

    koraldon,

    No worries on the substrate. I and many others use inert material that doesn't really 'do' much.

    Are you going to dose ferts at all or c02?
     
  8. koraldon

    koraldon Junior Poster

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    Hi All,
    I do use excel, 2cc per day.
    I will reduce my lighting regime to the following
    First 2 lamps from 11:30 to 19:00 (7.5 hours)
    Second 2 lamps from 13:30 to 21:00 (7.5 hours)

    Overall the average light on the aquarium will be like 3 bulbs, if i calculate correctly.
    Will this suffice?

    Thanks.
     
  9. Gerryd

    Gerryd Plant Guru Team
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    Hi,

    Not sure how that schedule is reducing the light. You still have 7.5 hours where BOTH sets are on (13:30-19:00), as far as I can tell.

    Just use TWO bulbs for 7-8 hours period and see how that goes................

    It more than suffices which is what I am trying to point out.......

    Up to you how much you use, but you seem focused on more is better and that is not the case with light and no c02.....at least IME/IMO

    You may want to try the following to give more viewing time... is what I do

    On 14:30 off 20:00 on 20:45 off 23:30 Just use two bulbs but use those that give the best spread of light over the tank, or at least the areas you intend to plant..

    All this is just my opinion of course. Feel free to ignore it..........
     
    #9 Gerryd, Jan 15, 2010
    Last edited by a moderator: Jan 15, 2010
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