DSB lighting

Discussion in 'General Discussions and Advice' started by Marine1, 7 Nov 2011.

  1. Marine1

    Marine1

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    Hi all
    What is the correct lighting strength for a dsb?
    Is a 500 w mh a bit to much?

    Thanks
     
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  3. Marine1

    Marine1 Thread Starter

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    I have cheato and caleptra in the dsb area, I had a energy saver bulb in and the plants started shrinking as if they were dying, I have my lights on a reverse cycle and need to know what would have the best results for the plants
     
  4. RiaanP

    RiaanP Moderator

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    definitely

    What CFL did you use.
    I used 2*24W, but my area was big enough. At some stage I even used a 45W CFL.

    Warm White or Cool white. I prefer cool white.
     
  5. Marine1

    Marine1 Thread Starter

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    Hi
    I have just put in a 500 w mh bulb that is hot, is this good or bad
     
  6. Marine1

    Marine1 Thread Starter

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    It's 118mm R7s, 240v Halogen, 500 w
     
  7. irie ivan

    irie ivan MASA Contributor

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    Definitely overkill, although I am not too familiar with 500 watt bulbs, you sure not maybe a sodium vapour or those other lights used for spots.... Name eludes me! Perhaps a 400W halide? Please remember that wattage is not an indication of quality or quantity of ligjt. It is related to energy consumption and heat. You should be able to grow algae under two large energy savers with some sort of reflector. If you look at my pics of frags I used to grow, you need to bear in mind that they were grown under T5 globes, so no reason why energy savers would not work.

    Not familiar with your system, but the reason for receeding of algae could be due to maturation of dsb, whereby it "grabs" nutrients before they can be taken up by algae.

    Another thing, if you have chaeto, please get rid of the caulerpa, for you might regret it in the long run.
     
  8. irie ivan

    irie ivan MASA Contributor

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    That's the name, sorry, halogen... Was typing as you posted. Although a nice yellow colour which is liked by plants, get rid of it, as its a waste of power AND a source of heat, which will cause you to have to buy a chiller....
     
  9. Marine1

    Marine1 Thread Starter

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    Hi
    Thanks, it is very very hot and I do have a chiller, space is my problem, need a light source to fit in a 350 mm space.
    This is a type of spotlight.

    Thanks
     
  10. mandarinman

    mandarinman

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    Why dont you buy a fluorescent from local petshop a nice little shorty?
     
  11. irie ivan

    irie ivan MASA Contributor

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    Get some compact flourescents! They can grow sps, so algae will be easy.
     
    toppdogg and mandarinman like this.
  12. Tobes

    Tobes Retired Moderator

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    I bought those R30 external square globe holders you get at Game. Used two 11w cool white energy savers over my cheato. Grew nicely under them. Also cheap to buy and to run.
     
  13. Braco

    Braco

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    Yip agree all the way..i grew cheato using those...
     
  14. Tremayn

    Tremayn

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    I just used one 18w ever ready 6400k energy saver with a diy foil reflector over the chaeto and it grew well
     
  15. shaunn

    shaunn

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    I am running 48 0.5w leds
     
  16. Dane

    Dane

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    I would also recommend CFL energy savers. 500w is total overkill... I would try and find ones that are within the 6400k colour range, as its best for macroalgae growth.
     
  17. mytank

    mytank

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    Does anyone know what lights fit within the 6400k so we have a reference to buy from
     
  18. Dane

    Dane

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    Sorry, I did not word myself very well there. I should rather have said "around the 6400k colour range". Aim for that colour temp, not just anything with that range, as that would include the lower spectra which are not as good.

    The globes I use are the eveready (i think) CFLs from Spar. They are called "cool white" (NOTE - this is just a name, there are many "cool white" globes that are not 6400k, it is not a standard colour, just a trade name that most companies use for their slightly whiter lights [which is what we are looking for, but I always aim to find one that states their colour temperature]).
     
  19. Tobes

    Tobes Retired Moderator

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    Most cool whites I've seen are 5000k - 5500k - which still work for cheato

    6400k are usually called "daylight"
     
  20. mytank

    mytank

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    No worries thank you the info I just wanted to have a reference of what to buy :)
     
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