Lighting And Pump!!!!

Discussion in 'Beginner Discussions' started by Qaiser, 18 Aug 2009.

  1. Qaiser

    Qaiser

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    hi

    Im i have a 910*325*325 with 75l sump jst wana know how much L/h pump i need and also what lighting its for a FOWLR system.

    Thanx in advance
     
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  3. Hermanus

    Hermanus

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    Hi, In my view try and return as much as possible water per hour, a 2500l/h pump will work well. 39w t5 x 4 ,3x 10000k and 1 x 20000k for lightning, what corals do you whant to put in?
     
  4. Qaiser

    Qaiser Thread Starter

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  5. Qaiser

    Qaiser Thread Starter

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  6. Hermanus

    Hermanus

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    No not at all, what fish are you going to put in?
     
  7. Qaiser

    Qaiser Thread Starter

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  8. RiaanP

    RiaanP Moderator

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    That sounds very mush like a standard 90L tank.

    It depends on what you have in the sump. If you have a DSB you do not want more that 3-4 times turnover going over it. Must be slow to allow settlement.
    Your tank total water volume should be about 90+75 = 165 * 4 times = 660 per hour. Or for 3 times 495L

    And that depends on how high the water must be lifted back to the display tank. say that is 1.5m. Then you must look for a pump that can deliver about 500 to 660 at a height of 1.5m. That should be somewhere in a 1000 to 1500L pump should do it. On your tank 2500 will be too much.
     
  9. riyadhessa

    riyadhessa

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    So how do you actually know how much turnover is going over your DSB?
     
  10. RiaanP

    RiaanP Moderator

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    3 to 4 times total water volume. Not more. Else sand storms or stuff do not have time to settle.
     
  11. Qaiser

    Qaiser Thread Starter

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  12. Pete

    Pete

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    Qaiser you can use kiddies play sand for you dsb but if you have the cash to splash go for aragonite sugar size 0.10mm-1.00mm in grain size
     
  13. RiaanP

    RiaanP Moderator

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    I used Play / Kiddies sand
    Get it from Reggies or garden Center (a lot cheaper R40 for a bag I cannot pick up). Just wash it properly.

    We a bit of topic,

    Original Q was the pump size. Big enough to give total water volume * 3-4 times at height of return pipe.

    For FOWLR system, 4 T5 globes will be enough, no need for MH.
    For sump light, any CFL, I use a 45w from Builders Warehouse. If you have no Macro algae in the sump, you actually do not need a light in the sump.
     
  14. Qaiser

    Qaiser Thread Starter

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  15. RiaanP

    RiaanP Moderator

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    Tank is shallow enough so 6*T5 will work. 39W

    But no anemones for first 8 months....
    Please don't. Tank is not mature, and the anemone will die. Give it time and learn how to keep a marine tank stable. Also a small tank like yours (and how mine was) is a lot more difficult to keep stable. So first learn the ropes.

    Sorry, do not want to cr@p you out, just warn you.
     
  16. Qaiser

    Qaiser Thread Starter

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  17. Tony

    Tony

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    They guys are right with the pump size. Usuallt the pumps have a graph showing the reduction in flow with different heights. Also factor in that elbows will slow the flow down by a foot
     
  18. Hermanus

    Hermanus

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    Hi. I'm back today! So Riaan if got a 1.8m busy setting it up and a 2500l/p pump and i think it will be why to small, what pump size do you think I must go for. the lift is about 2m high, so I think it does about 1500l/h on that hight that is just about 2 and a half times total water volume over DSB
     
  19. RiaanP

    RiaanP Moderator

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    Hermanus, you did not give the water volume.
    But 1.8m plus sump should at least be 750L or more.
    And delivering at 2m 1500, means you will get 2 time flow over DSB, or less.
    Little bit slow.

    Why not add another similar pump, and have some redundancy. If one stops for whatever reason the other is still going. So you can do maintenance on one and keep other running.

    Wattage used will be a bit more running 2* 2500 pumps instead of one 4000L pump.
    But you already got one pump, why throw it away?
     
  20. keyaam

    keyaam

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    Take caution when running 2 return pumps. If they one fails the other will just siphon the display tank until the other one stops unless its setup in a way that the return is above the water level in the DT.
     
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