8,000,000L Marine Aquarium

Discussion in 'General Discussions and Advice' started by wouterloosman, 24 Feb 2012.

  1. wouterloosman

    wouterloosman

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    Hi,

    This month I was in Holland for a quick visit. I went to the Zoo, where they have an aquarium with in total 8,000,000 Litres of water.

    They have a couple of different tanks. The largest one is 32m wide, 17m deep and 6m water level. Total watervolume of this tank is ~3,000,000L. The glass/acrylic of this tank is only 350mm thick!!

    They have one tank where they keep real corals (the rest is fake), here some facts about this tank:

    PHYSICAL DESCRIPTION
    - Volume 750,000 L
    - Surface area 220 m2 ~ 15 x 15 m, very complex shape
    - Depth Max. 6 m
    -
    LIGHT CONDITIONS
    - Natural: Some indirect natural light through transparent roof and a little bit of direct sunlight in summer
    - Artificial: - 33 x 2,000 W Phillips MHN-TD 5,600 K
    - 21 x 400 W Aqualine 13,000 K
    - Total: 74,400 W or 340 W.m-2
    - Moonlight OSRAM CL E27/ES bulbs 0, 15, 25, 40, 60, 75, 85, 120 W increasing
    towards full moon and reverse for new moon

    FILTRATION (external)
    - Total external filtration 85000h

    FILTRATION (internal)
    - 10 tons ‘live rock’ and 80 tons ‘dead rock’ (~ 12 % of tank volume)
    - 21 tons of different grade coral sand
    - Jaubert filter divided in several sections physically separated
    - Double layer above plenum: ~5 cm of sand covered by PVC plate with
    holes throughout, covered by ~10 cm of sand again
    - Total living sand area = 140 m2

    WATER MOVEMENT / CIRCULATION
    - External pumps 2 pumps, total 200,000 l/h in one direction
    - 6 pumps total with eductors changing directions every 3-10 minutes, total 300,000 l/h.
    - Submerged pumps 4 mixers (EMU model TR28.145-4/11) creating currents over 20 m range, estimated to be running at 500,000 l/h per mixer
    - Total flow ~3,300,000 l/h of which 95 % is unfiltered, filtration flow 85000 l/h
    - Aeration Air stone (0.5 m length x 10 cm diameter) at night for 10 hrs

    WATER CHANGES (with “new” salt water)
    - Type of system Totally closed
    - 100% per year with artificial salt-water (Tropic Marin Zoomix excluding bromide) as daily water changes (~2050 litre per day)


    The water they change in this tank is reused in the other tanks.

    Here link to a document(pdf) with more details:
    http://www.burgerszoo.eu/media/108890/chapter%2031.pdf


    Also made some pictures...
     
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  3. wouterloosman

    wouterloosman Thread Starter

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    Water Level starts low

    Water Level starts low:

    [​IMG]

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  4. Nemos Janitor

    Nemos Janitor

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    PIC's or you didn't see it. :whistling:


    yeah you saw it.
     
    Last edited: 24 Feb 2012
  5. wouterloosman

    wouterloosman Thread Starter

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    water level is rising

    Water level is rising

    [​IMG]

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    [​IMG]
     
  6. wouterloosman

    wouterloosman Thread Starter

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    There coral tank

    There coral tank, they have coral grow(sps) at 5 meters deep....

    [​IMG]

    [​IMG]

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  7. Express Reef

    Express Reef

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    Wow Nice :thumbup:
     
  8. wouterloosman

    wouterloosman Thread Starter

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    Shark tank

    Shark tank... 3,000,000 liters of water :p and a shipwreck in it

    [​IMG]

    [​IMG]

    [​IMG]
     
  9. wouterloosman

    wouterloosman Thread Starter

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    Under the water

    Under the water...

    [​IMG]

    [​IMG]

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    [​IMG]
     
  10. wouterloosman

    wouterloosman Thread Starter

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    Patience ;) ...... is it enough now???
     
    Nemos Janitor likes this.
  11. Express Reef

    Express Reef

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    We want more, we want more :p :lol:
     
  12. Jeann1

    Jeann1

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    Nice. Its something different than the average
     
  13. Evo R

    Evo R

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    WOW thats cool!!!

    Kind of puts our local aquariums to shame!!
     
  14. KATHIE

    KATHIE

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    Now thats something
     
  15. jaquesdp08

    jaquesdp08

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    Wonder what eskom will say about Total: 74,400 W or 340 W.m-2
     
  16. Broder

    Broder Mudshark

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    Astounding.... thanks for posting.
     
  17. LuckyFish

    LuckyFish MASA Contributor

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    The acrylic panes from the shark display are 300mm thick.

    Wouter, I want your honest opinion. What did you feel and what is your personal summary about the aquarium?

    I've been there many times. Mostly because of the kids. I found it, except the size, very disappointing.
    Imagine with our know how, what we could do there, if we would be in charge of the aquarium.
     
  18. crispin

    crispin

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    wow that coral tank is something beautiful. do you have any more photos on it?
     
  19. Tobes

    Tobes Retired Moderator

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    A Beautiful place!
    Wow, very nice - thanks for sharing :)
     
  20. Tremayn

    Tremayn

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    wow! Thanks!
     
  21. colbar

    colbar

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    Super, thanks for sharing that with us.
     
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