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why does Tonina sp. become like this(pics)?

Discussion in 'Talk to Tom Barr' started by a-hua, Feb 13, 2009.

  1. a-hua

    a-hua Subscriber

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  2. ccLansman

    ccLansman Guru Class Expert

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    poor parameters, bad co2 or bad fert routine. If you notice its only the old stuff that has issues. What is your current setup? Lights? Flow rate? Fert routine? Co2 method?
     
  3. Tom Barr

    Tom Barr Founder
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    New growth looks okay, but the lower part reeks of bad CO2.
    It's a weed of a plant.

    But will die and not look good if the CO2 is poor or you don't add ferts etc.
    This looks like CO2 to me.

    I had 2-3 Sq ft growing in my 180 for a few months, got tried of trimming it.

    Regards,
    Tom Barr
     
  4. a-hua

    a-hua Subscriber

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    http://i221.photobucket.com/albums/dd125/a-hua/DSC01243.jpg

    co2 problem??? :(
    above pic is how i add co2...more than 2-3 bubbles/sec + powerhead
    and the little white spots in the pic are all co2 bubbles(isn't is co2 mist?)

    is the flow(powerhead) too fast?
    or should i just change to another co2 way ?

    tank info
    31*23*27cm
    half of 20w philips t8 865, 12 hours/day
    grain soil
    co2(12 hours/day)+powerheard
    26'C(28'C 3 days before)
    EI+excel
    kh=2-3
    use Al2(SO4)3‧14H2O, Aluminum Sulfate to lower the kh (tap water kh is about 3)
     
  5. Tom Barr

    Tom Barr Founder
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    You have algae on the bottom 4/5th of the plants:)

    Something is wrong or was wrong and has now been corrected.

    One of the two...........

    Regards,
    Tom Barr
     
  6. Tom Barr

    Tom Barr Founder
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    Use 10hours /day light, not 12.

    Regards,
    Tom Barr
     
  7. a-hua

    a-hua Subscriber

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    it is strange this kind of algae(dust algae on the leaf) happened often in my tank. why?
    i drop lots shrimps to solve it several times.
     
  8. a-hua

    a-hua Subscriber

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    why?
    i think 12 is better than 10 hours for plant.
     
  9. Tom Barr

    Tom Barr Founder
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    I do not have it with or without shrimp............

    A lack of shrimp is not why you have/don't have algae.
    They are just icing on the cake so to speak.

    I know what poor CO2 looks like on this plant.


    Regards,
    Tom Barr
     
  10. Tom Barr

    Tom Barr Founder
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    Then do what you think is best.
    The plant does not need more than 10 hours, no plant does.

    Regards,
    Tom barr
     
  11. a-hua

    a-hua Subscriber

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    do i write something wrong?

    this algae happened several times in my tank,
    and everytime the plant's glow become very slowly.

    i use shrimps to eat them,
    but why the algae happen?
    how can i prevent it ?:eek:
     
  12. a-hua

    a-hua Subscriber

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    that is one aquarium owner in taiwan told me 12 hour,
    but i don't know why.

    if 10 is good,
    i will exchange to because money :D .

    thanks tom.
     
  13. Tom Barr

    Tom Barr Founder
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    No, it's just another way to rephrasing things so you think about the algae issue correctly.

    Do you think that you must have lots of shrimp to keep tonia or any plant algae free?

    No.........

    This issue is really one of CO2.
    I have seen this on Tonia in many tanks, and the CO2 is the root issue.
    If the KH is lower, say 4 degrees or less, then you should be okay, other than CO2, and lower KH, the plant is not that picky, nor demands high light.

    As you have okay growth on the top, you are still having some growth, just not optimal. The algae of this type is telling also, it really suggest suboptimal CO2.

    I've seen this same picture in other tanks here and adding a bit more CO2 took care of it. It might not be as simple as adding a bit more CO2, you might need to clean things up, add more plant biomass, change some filter issues etc.

    Current, filters, surface movement all influence CO2 and can a great deal.

    Large frequent water changes in the morning right after the lights come on can tell you quickly if it's a CO2 issue, as the plants will pearl and do much better that day and the non water change days.

    Regards,
    Tom Barr
     

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