Chaeto Compartment Lighting??

Discussion in 'Lighting' started by brentv, 21 Feb 2011.

  1. brentv

    brentv

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    Hey guys,
    i'm looking for a grow light bulb, prefferably a screw in one, for my sump chaeto compartment.
    I have heard you need a pink plant grow one! Bit of a battle to find on the south coast! If you have a name and make I can order from a Mica or Builders express. Any ideas?
     
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  3. robertkukla

    robertkukla

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    i dont think you need a grow globe, i have a 45 watt longlife globe over my cheatos and it works perfect
     
  4. Tremayn

    Tremayn

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    you want a more yellow light, like 8000K .. You can get the energy saver day light globe. Im using a warm white energy saver
     
  5. Dane

    Dane

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    Even 8000k is very white for growth. If its for cheato I'd suggest a simple "cool white" CFL - check that they're around 6500k - perfect for growth. Spar sells 18w+ "Eveready" cfls which are dead right. I use them over my nano for lighting! hahaha :)
     
  6. Dane

    Dane

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    Tremayn - are you sure you're globe is 8000k?? Warm whites are usually much lower - like 3200k etc... Its a bit too yellow for me. 6500k is a very good match for daylight - perfect for plants...
     
  7. Neil H

    Neil H Moderator MASA Contributor

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    I am with Dane on this one, you are looking for something in the 4500 to 6500K range CFL's from your local diy shop should be fine
     
  8. inflames

    inflames

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    I use 2 x 18watt CFL's and they work like a charm! Just ordinary energy savers, dont worry to much about the make. I did build in some DIY reflectors to this for extra light reflection. Just change them every 6 months or so ans they do loose thier intensity.
     
  9. ziyaadb

    ziyaadb

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    from my experience with CFL growing cheato:

    3000K - warm white - not soo good but will work - easy to get
    5500K - Cool white - does the job - easy to get
    6400K - daylight - Best - was bloody difficult finding it as not many stores stock it
     
  10. Dane

    Dane

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    As I mentioned before, you should be able to get these at any spar. The brand is eveready, they have 18w CFLs which are labelled cool white and are 6400k. Sometimes they stock higher wattage right up to 50w etc, but very rarely. Never not seen them with the 18w in stock tho.
     
  11. Tremayn

    Tremayn

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    the globe I'm using is 4600k, well thats what it says on the box lol. Its very yellow but I want to get a whiter globe.. Just had the warm white around
     
  12. seank

    seank

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    I had and still uses the same light and fitting from my previous setup. Screw in Fluorescent bulb and 1 T5. And the stuff is growing in the sump:thumbup:
     
  13. mariusmeyer

    mariusmeyer

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    How far do you guys put the globes from the algae? I got one of those energy saving spotlights (safer than exposed globes) and added 2 X 32W globes but it looks quite weak when I put it over the sump. Distance is most probably 300mm away from the water surface.
     
  14. RiaanP

    RiaanP Moderator

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    Apparently you should not mount a CFL pointing downwards. With base at the top. The globe heats up its own base and that affects the globe lifetime.

    But it is a lot easier to mount pointing downwards, and some of these CFL tubes are anyway so cheap. And as with T5 tubes, they have to be replaced from 6 months onwards as they loose their intensity. So mush for longer live....

    Cool white is best option, As daylight is not that freely available.
     
  15. brentv

    brentv Thread Starter

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    Great thanks guys,
    :thumbup:
     
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