leaves turning yellow

Discussion in 'Water Chemistry' started by Bluegill, May 9, 2011.

  1. Bluegill

    Bluegill New Member

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    Location:
    West central Louisiana's Piney Woods
    ph 6.6
    ammonia 0
    nitrates 0
    nitrites 0
    squash growing well but fruit "shrivelling up....they look line prunes....no good
    bean leaves turning yellow...but still bearing beans...
    tomatos thriving.....
    peppers....seems like they are in a standstill....growth but no fruit....
    onions....doing nothing....
    eggplant....one fruit....nothing else....got 2 plants but one wont flower....
    Any suggestions...?
    D.
    :confused:
  2. Yabbies4me

    Yabbies4me Super Moderator Staff Member

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    Hi Daryl,

    We may be able to help, but could use a bit more info...

    What's your water temps?
    What's your air temps (night/day)?
    Have you been adding any Maxicrop etc, if so, how much and how often?
    Have you been adding any Chelated Iron? (you can get Maxicrop in US with Iron added)
    How many litres of water in FT and how many fish in it?
    How many litres of GB capacity?

    Cheers, Yabbies.
    .
  3. Bluegill

    Bluegill New Member

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    Location:
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    Thanks....Yabbies..
    water temp....about 21 C to 25 C
    Air temp about the same during the day
    Air temp about 21 to 22 during the night
    yes, added Maxicrop about 3 days ago and did see a marked yellowing....but they have been getting more yellow all the time......the lower leaves on my beans are dropping off....I added about 1/2 of a coffee cup of Maxicrop right out of the container to the sump.
    I havent gotten any cheleated iron yet....
    FT is 600 liters
    GB is 6 half barrels or 600 liters total
    D.
  4. Bluegill

    Bluegill New Member

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    OH....I forgot....I have twelve ..75mm hybrid bluegills in the 600L tank.....feed em every day about 6:00pm......about 5 % of their weight.
    D.
  5. bill newton

    bill newton Active Member

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    i reckon its shortage of iron iron chelates two teaspoons into sumptank

    carna pies!!!drinkanimdrinkanimdrinkanim
  6. Yabbies4me

    Yabbies4me Super Moderator Staff Member

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    Your pH, temps, etc all appear to be okay.

    Maybe with the fruit not setting, or setting and shrivelling up, and the yellowing leaves, you may not have enough Potassium... common in systems under a year old.

    Purchase and add a couple of teaspoons of chelated Iron first, if that doesn't sort the yellowing out within a week or so, then I would add some Potassium.

    Here in Oz they use a product called Eco-rose, alternatively you can get a Potassium product (I can never remember it's full name) from home brew shops, try searching it in the forum and you should get the name and application rates etc.

    Some forums members also bury banana skins in the GB's and let the worms break them down... they've got plenty of Patassium in them (among other elements).

    Cheers, Yabbies.

    P.S. I gather you weren't in the path of any of the recent twisters, you must have been close though?
    .
  7. Bluegill

    Bluegill New Member

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    Location:
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    Nope....no twisters but the ole Mississippi river is way ovet its banks and the water will be reaching the new orleans area in a week or so....
    I live in the pine forests about 234 ft. above sea level
    thanks for the help
    I'll get some iron.
    Darryl
  8. DaveOponic

    DaveOponic New Member

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    Brunei
    Darryl

    Sorry to hear about the Mississippi rising. Take care. How is the drainage in your GB's?

    I also have had yellowing leaves and have been adding "Super Gro" (Organic fert. containing iron chelate and other goodies.

    After some research on web, I am thinking that water logging could be a problem and is preventing uptake of nutrients.

    I find that my siphons are intermittent due to varying water input to GB's.
    I intend to make a mega siphon soon as I am sick of tweaking siphons in the 5 separate GB's.

    I have attached photos showing leaf problem. (Chlorosis) While it has improved over past week. The leaves are still not as green as I think they should be. Is this similar to your problem?

    My systems are in Borneo. Hot equatorial tropics. Water temp. av. 28 deg. C. Air temps about the same. pH - normal range.

    Attached Files:

  9. Bluegill

    Bluegill New Member

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    Location:
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    bought some chelated iron....added about 20 teaspoons to 600 liters.....may have been too much (it was too much).....my ph went took a dive....so I tried to bring it up and grabbed the wrong jar....I added Ammonium Chloride.....immediately my ammonia level went off the chart......so I drained the FT and refilled with water from the well....now PH is around 6.5 .....whew!......anywy %$* happens!
    Back on track....
    D.
  10. Yabbies4me

    Yabbies4me Super Moderator Staff Member

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    .....:eek: :eek: :eek:


    .....:confused:

    .
  11. fishfood

    fishfood Active Member

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    With all that iron in there the fish would filter a bit and sink they would be to heavy to swim
  12. Bluegill

    Bluegill New Member

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    Yep.......point taken......
    D.
  13. Aquaponeer

    Aquaponeer New Member

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    Dec 1, 2010
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    Location:
    Bangkok, Thailand
    I have a choice of the following Iron Chelates available to me here in Thailand. Which one should I use?

    ETDA 13.2% 1kg powder 460 baht ( USD $15.30)
    EDDHA 6% 1kg powder 590 baht ( USD $19.66)
    DTPA 7% 1kg powder 420 baht ( USD $14.00 )

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