Greystoke's new tank set-up.

Discussion in 'D.I.Y.' started by Greystoke, Nov 17, 2012.

  1. Luis Embalo
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    Luis Embalo Valued Contributor

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    That metal tray, is there where the lights will be?

    Why not plant emersed plants on top, such as post of HC, hairgrass, downoi, and many other carpeting plants?
     
  2. Greystoke
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    Greystoke Specialist

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    OK,
    Got up this morning and started to fill-up the tank.

    Took a measurement from floor to the supporting surface of the shelf: 826mm

    Half way full (total weight ≈ 166kg): 826mm

    completely filled-up (total weight ≈ 250kg): 826mm

    That shelf doesn't even notice the tank. ;D

    Those are the LED heatsinks.

    You know, I might well do as you suggest, but I'v got to finish this step first. ;D
     
  3. Trev Pleco
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    Trev Pleco Algae destroyer

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    The marvels of Cor continue ! Being stupid with this, please explain those aluminum trays a bit more .. will the LEDs be mounted underneath or on the side of them or how would they shine through them if on top :scratch:
     
  4. Greystoke
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    Greystoke Specialist

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    The LEDs will be mounted underneath shining straight down. The trays are cut from a 6.5m extrusion made available by ANSO ALUMINIUM @ R695 for the whole length, delivered.

    I had little option. There was nothing else available at this end of the world, but - at least - I have a few meters left.
    Below you can see the lay-out of the LEDs. The extrusion is pictured upside-down straight from Anso's cataloque.

    [​IMG]
     
  5. Schalkv710
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    Schalkv710 Green fingers

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    I Love this cooling system but won't the aluminium release toxins into the water?
     
  6. Greystoke
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    Greystoke Specialist

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    I don't expect that because the extrusion surface is covered in a thick layer of Aluminium oxide which is inert, although there are some blemishes that I intend to cover-up.
     
  7. Greystoke
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    Greystoke Specialist

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    Proof of the filled up tank:

    [​IMG]

    First pump trial is going well:

    [​IMG]
     
  8. Slagter
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    Slagter Aquascaper

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    Stunning... I want one!!
     
  9. Maurice
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    Maurice Aquascaper

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    This is a fantastic build and DIY, Cor!!

    What plants are you thinking of using
     
  10. Greystoke
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    Greystoke Specialist

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    You're way ahead of me Morris. At first, I was thinking of someting like this:

    [​IMG]

    But I'm getting pretty confused with all the suggestions :scratch:
     
  11. Anonymous
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    Awesome Dude.
     
  12. Greystoke
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    Greystoke Specialist

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    Uhhh, I can suggest a reasonable consultant. :laughing7:
     
  13. Maurice
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    Maurice Aquascaper

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    That does look very nice indeed, i am sure you will work something out, plantwise 8)
     
  14. Greystoke
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    Greystoke Specialist

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    I've got the rocks, and I like the simplicity of the design, so . . . I might still go for this. ;D
    (I might put a "road" in there, somewhere halfway, going left to right)
     
  15. Slagter
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    Slagter Aquascaper

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    If you put in a road, you have to get the VW beetle ornament for the road... lol!
     
  16. Trepcoz
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    Trepcoz Algae harvester

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    This is so awesome Mr Cor!

    What temperature do you think the water will get to flowing over the heat sink like that?
    Do you think in winter you will need a heater?
     
  17. Greystoke
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    Greystoke Specialist

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    Haven't worked that out yet, coz the total amount of heat generated at the lowest bias current will only be about 30Watt. I can however increase that to ± 50Watt by changing the current. (That would change the light surface intensity from 100PAR/m ² to 140PAR/m ²)

    On average, the tank will need 100Watt to maintain 26 °, so this is a reasonable saving (provided the lights are on ;D).

    But cooling the heatsink also reduces the junction temperature of the LEDs, and that is a life saver to them.
     
  18. CharlieB
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    CharlieB Algae harvester

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    Any update? ;D
     
  19. Greystoke
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    Greystoke Specialist

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    Hit a few problems with the volume of water down the overflows. The water level rises too high in operation and it floods the heat sink. The pumps appear to be too powerful.
    Problems, problems :BangHead:
     
  20. Max98
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    Max98 Algae harvester

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    I like the idea of water cooling on the leds. Hope you get the overflow issue sorted.
    Guess there is only 2 possible solutions. Make it easier for the water to flow out or reduce the water flow.
     

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