experimental 5l jar

Discussion in 'Journals' started by chka, 1 May 2014.

  1. chka

    chka Member

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    Another retrospective journal.
    Begining of January I bought this 5l spherical jar in Tesco for experiments
    so I put a bit of amazonia soil and some white sand of top, put some spare plants, and one pregnant Neocaridina davidi, and few small pond snail from other tanks.
    I put this jar on a window with direct sun light. No heater, no filtration, no feeding. 50% water changes once in 1-2 weeks.
    7?token_hash=AAF75NNYt1Zpxl1M43prhxvli8FUFQf9u-KXO7SSi2OsjQ.jpg

    after couple of weeks I sow little shriplets. And they seems to feel fince -were very active in contrast with mother shrimp. Night water temperature dropped till 15C. day time without sunshine 18-19C. At sunny day it was as high as 35C!
    in few weeks shrimplets become quite bigger:
    [DOUBLEPOST=1398944201][/DOUBLEPOST]Some plants were not really growing in such conditions, but ludvigia repens grows a lot and almost filled the jar which I did not like.
    So I decided to restart this jar. All shrimps went to newly flooded http://www.ukaps.org/forum/threads/stonehenge-55l.32836/ 55l Stonehenge. And I did about 2 weeks dry start for HC Cuba and some other small plants.
    I put another pregnant shrimp there, and later added big sea snail shell.
    2?token_hash=AAF75NNYt1Zpxl1M43prhxvli8FUFQf9u-KXO7SSi2OsjQ.jpg
    4?token_hash=AAF75NNYt1Zpxl1M43prhxvli8FUFQf9u-KXO7SSi2OsjQ.jpg
     
    Last edited: 1 May 2014
  2. chka

    chka Member

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    sciencefiction and EnderUK like this.
  3. chka

    chka Member

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    actually, anybody can help me to find out which species that sea snail shell belongs to? it found on the beach of Irish Sea...
     
  4. dw1305

    dw1305 Expert

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    Hi all,
    Looks like a "Common Whelk" (Buccinum undatum).

    cheers Darrel
     
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  5. chka

    chka Member

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    two new very bad videos :) it is quite difficult to film spherical jar :/

     
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  6. sciencefiction

    sciencefiction Member

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    Nice, I'd love to try some Cyclops in one of my shrimp tanks to see if they'll survive.

    Do you do water changes in it?
     
  7. chka

    chka Member

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    Cyclops will do easily. I have them now in all my tanks. they survived even in community tank. But they are too small to watch them.
    Daphnias require very oxygenated water and this jar is first where they seems to thrive...[DOUBLEPOST=1399560365][/DOUBLEPOST]another interresting thing about that jar - direct sunlight, no CO2, but somehow no algae at all!!! accidental equilibrium? :)
     
  8. chka

    chka Member

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    Yes I do about 50% water change irregularly. once in 2-4 weeks.
     
  9. chka

    chka Member

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    I was away for about 3 weeks so one photo update on my return:
    IMG_5438.JPG

    colonies of Cyclops and Daphnias disappeared. Probably over competed by growing shrimps for food. Or probably the reason is nobody dropped liquifry which I did quite irregularly before just in case.
     
    Last edited: 4 Jul 2014
  10. chka

    chka Member

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    Direct sunset light
    amezepad.jpg
    epusa9y6.jpg
    y9ujebah.jpg
     
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  11. chka

    chka Member

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    now it is about half year for that jar set-up. It stays at direct sun light all the day - the window looks at south-south-west. No algae problem what so ever! What is "wrong"? :) I just want to have some explanation because it is written everywhere - no direct sun light!
     
  12. LocustDemon

    LocustDemon Member

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    Very cool experiment that anybody could try at home! Also a great way to see how new plants grow!!
    Impressive :)
     
  13. chka

    chka Member

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    Just a photo update. No much changes here, still no algae :) 2 weeks ago put few new born danio rerio inside and they seems doing ok slowly growing in same speed as the rest of them in dedicated tank. Difficult to picture them though...

    ebd341a46eb60bfabfdee9ae8f84f966.jpg
     
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