Why does my sump not have algae

Discussion in 'General Discussions and Advice' started by rakabos, 28 Mar 2012.

  1. rakabos

    rakabos

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    Why is it that my sump has crystal clear glass, cept for some coraline patches here and there. No film algae at all. While in the DT I have to clean the glass every few days.

    I have 2x T5's so plenty light for the macro algae in the sump.


    The sump glass never ever needs cleaning....Why is that...
     
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  3. Keanan

    Keanan 2time

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    Was wondering the same thing. Tagging along.
     
  4. Wes

    Wes

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    Last edited: 28 Mar 2012
  5. archiecrain

    archiecrain

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    I was wondering the same thing.....always thought it was due to different intensity in lighting for display to sump.....
     
  6. rakabos

    rakabos Thread Starter

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    I have 2 x 39W giesemans in the sump and 6 x 80w up top. Same spectrums. What gives?
     
    Last edited: 28 Mar 2012
  7. dallasg

    dallasg Moderator MASA Contributor

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    i put it down to larger faster flow, no fish waste directly in the area, and that the rich oxygenated water keeps the redox high and water cleaner.
     
  8. gMAN

    gMAN with the plan

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    I used to have a bit of algae on the sump glass but now have limpet snails in the sump breeding like rabbits and they do a great job of keeping the glass clean...
     
  9. rakabos

    rakabos Thread Starter

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    I have the odd micro brittlestar and worm and such, but no CUC really. The algae simply doesnt grow. Must be light intensity?
     
  10. Max98

    Max98

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    It could be the sand/argonite in the display tank. I have gone bare bottom this weekend after struggling for months and the glass is still clean after 5 days.

    This might also be due to me removing my pellets I guess...
     
  11. gMAN

    gMAN with the plan

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    I've got a 100w spot over the dsb area for the chaeto so that could make sense as to why i had algae growing on the glass...?
     
    Last edited: 28 Mar 2012
  12. Express Reef

    Express Reef

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    OVER KILL:eek:
     
  13. gMAN

    gMAN with the plan

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    lol, gets the chaeto growing...
     
  14. Express Reef

    Express Reef

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    Eskom gaan jou kom @$#^&*( you can get same grow with less light Feel Free 360 Circling 7W Aquarium PL Light check this light out... its cheep and works like a bom 7w and 6700K:eek:
     
  15. gMAN

    gMAN with the plan

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    anywhere local that stocks this light or do i havta order?
    Sorry for jacking your thread Martin...
     
  16. RiaanP

    RiaanP Moderator

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    Do the light in the sump actually shine on the glass? And in relation to display, how much light is the display lights casting on the glass?
     
  17. Broder

    Broder Mudshark

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    Probably many reasons. The light intensity on the glass is less as mentioned by Riaan. Less flow, higher flow equals more growth. More unhindered browsing by copepods, molluscs and limpets. Probably most important in a well balanced and established system, is the fact that the bacteria in your dsb are reducing the nitrate level to the extent where the levels in conjunction with all the other factors create a better environment for algae in your display, and therefore a shift occurs. This is exactly the principle that forms the basis of algae scrubbers. Ie creating an ideal environment for algae to flourish.
     
  18. Goby

    Goby

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    i put it down to the lights. much more light over the DT as over the sump. Algae just love's light.
     
  19. Tony

    Tony

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    Most guys have very little light in their sump and the light is usually suspended very high above the sump to make it easy to work there (usually at the base of the display which can leave a 40-60cm gap depending on the height) so their is a loss in light intensity. Look at it logically, most tank have a sump slightly smaller than the actual display size wise, but the display will have much more light closer to the waters' surface than the sump. Some guys dont put reflectors with their lighting so there is even more light loss as the beams arent concentrated.
     
  20. rakabos

    rakabos Thread Starter

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    So the consensus seem to be less light intensity
     
    dallasg and Tony like this.
  21. Leon1975

    Leon1975

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    hi rakabos leon here i have a 1 t5 80w over my sump and i have it on 24 hours and my alrea and calurptra is growing like mad every 2 weaks i have to throw calurptra away so i think you must keep your lights much longer on try that
     
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