Surface water movement

Discussion in 'Pumps and Waterflow' started by Smithers, 11 Jun 2007.

  1. Smithers

    Smithers

    Joined:
    7 May 2007
    Posts:
    1,097
    Likes Received:
    10
    Location:
    Hillcrest
    Is it better to have the surface of your tank still or to be really choppy ?

    Short and sweet, need some answers !
     
  2. AdS Guest




    to hide all adverts.
  3. ed

    ed

    Joined:
    1 Jun 2007
    Posts:
    230
    Likes Received:
    6
    Location:
    Bloemfontein
    mine is quite choppy, especially in the sps system
     
  4. Copperband

    Copperband

    Joined:
    7 May 2007
    Posts:
    842
    Likes Received:
    2
    Location:
    Jo'kwane
    Choppy helps with the exchange of gasses Smithers. So you want a fair amount of surface movement. Obviously not mini tsnami's as floor will get wet.
     
  5. Midasblenny

    Midasblenny

    Joined:
    11 May 2007
    Posts:
    855
    Likes Received:
    10
    Location:
    Randburg-Gauteng
    Agree with Mr. Copperband
     
  6. Smithers

    Smithers Thread Starter

    Joined:
    7 May 2007
    Posts:
    1,097
    Likes Received:
    10
    Location:
    Hillcrest
    The reason I asked this is when I turn my pumps off for any reason, you can see a film on top of the water after a few minutes. Surely this is what the skimmer should pull off. By churning the water up would it not affect the production of skimmate ?
     
  7. Copperband

    Copperband

    Joined:
    7 May 2007
    Posts:
    842
    Likes Received:
    2
    Location:
    Jo'kwane
    Gavin, make it choppy so that the oil slick (who had his hands in your tank?) can be moved through the skimmer. Also do you do any form of surface skimming?
     
  8. Smithers

    Smithers Thread Starter

    Joined:
    7 May 2007
    Posts:
    1,097
    Likes Received:
    10
    Location:
    Hillcrest
    I have an external over flow box, and only hands in my tank are mine. Can't let Ej put his hands in there, dunno where they have been.
     
  9. mango

    mango

    Joined:
    6 May 2007
    Posts:
    65
    Likes Received:
    0
    mine is extremly choppy i have 2 vortech pumps going with tunze and seios and all is good
     
  10. Muz

    Muz

    Joined:
    7 May 2007
    Posts:
    914
    Likes Received:
    7
    2 months ago I had my water surface quite still, when I added my seios I noticed quite a big difference in the water surface being quite choppy.. I have not noticed any difference to my skimmer production but it maked=s the MH look cool and I am sure helps with gas exchange, I have to switch one pump off during feeding though.. shame poor fishies get a good workout.

    Muz
     
  11. neilharris

    neilharris

    Joined:
    27 May 2007
    Posts:
    156
    Likes Received:
    2
    Location:
    Hampshire, UK
    Gass exchange in a system is very important and a choppy surface will aid in this. You will find that if you keep the water calm your pH and other perams will not be a stable as if it is turbulent.
    In other words, choppy, turbulent water is best!
     
  12. Mekaeel

    Mekaeel Moderator MASA Contributor

    Joined:
    8 May 2007
    Posts:
    24,229
    Likes Received:
    127
    Location:
    Point Waterfront Durban
    gavin,you say you got a film on your surface,which means not all the water is getting pushed over the overflow.try and repostion you pumps to allow the water push directly into your overflow
     
  13. Smithers

    Smithers Thread Starter

    Joined:
    7 May 2007
    Posts:
    1,097
    Likes Received:
    10
    Location:
    Hillcrest
    Mekaeel this is only when all the pumps and RETURN pump is off.
     
  14. palmerc

    palmerc

    Joined:
    12 May 2007
    Posts:
    642
    Likes Received:
    6
    Location:
    Edenvale, Johannesburg
    Hi Gavin,

    Mekaeel is right though, if you switch off the pumps there should be no slick visible on surface if you are surface skimming well.
     
  15. Mekaeel

    Mekaeel Moderator MASA Contributor

    Joined:
    8 May 2007
    Posts:
    24,229
    Likes Received:
    127
    Location:
    Point Waterfront Durban
    i had the same problem as you gavin.i repositioned my pumps to allow the water on the surface to head directly for my overflowbox
     
  16. Afsal

    Afsal

    Joined:
    7 May 2007
    Posts:
    2,314
    Likes Received:
    21
    Location:
    Dbn,Kzn
    ive got my 2 seios positioned on the opposite side sof the overflow , that way all the "dirt" is pushed down the overflow !!!!
     
  17. Mekaeel

    Mekaeel Moderator MASA Contributor

    Joined:
    8 May 2007
    Posts:
    24,229
    Likes Received:
    127
    Location:
    Point Waterfront Durban
    by the way is your over flow situated in the center or on the side of the tank gavin?
     
  18. Smithers

    Smithers Thread Starter

    Joined:
    7 May 2007
    Posts:
    1,097
    Likes Received:
    10
    Location:
    Hillcrest
    The overflow is on the right side of the tank. Last night I turned all the pumps off (rewiring) and there was no film. I re-angled one of the pumps to blow towards the overflow. That is now sorted out.
    Next thing I need to do is to get a spray bar of sorts behind the rock work. I was thinking of hiding a pump with a 16mm spray bar behind all the rockwork, just so it keeps the shit off the gravel. I am seriously thinking of going barebottom in the next tank. Problem is i love my wrasse.
     
  19. Mekaeel

    Mekaeel Moderator MASA Contributor

    Joined:
    8 May 2007
    Posts:
    24,229
    Likes Received:
    127
    Location:
    Point Waterfront Durban
    well done gavin!glad to hear its sorted out.im also planning a type of spraybar thingy at the back of my rock work!just trying to figure out whats a decent size pump to use.my,pipe will be 1.8m long and its a 20mm with 4mm holes every 10cm
     
  20. Muz

    Muz

    Joined:
    7 May 2007
    Posts:
    914
    Likes Received:
    7
    Why not have the best of both worlds !! I have BB under my LR and plenty substrate in front, my spraybar pushes all the detris under the LR to the front. I don't like hijacking threads so if you want let me know and I will post pics of what I have done, I feel like it works very well, but as always.. personal opinion

    Muz
     
  21. Mekaeel

    Mekaeel Moderator MASA Contributor

    Joined:
    8 May 2007
    Posts:
    24,229
    Likes Received:
    127
    Location:
    Point Waterfront Durban
    as long as the detris doesnt build up and there is constant flow in my tank,i'll be happy,notice some detris building i the back of my tank!
     
Recent Posts

Loading...
Similar Threads - Surface water movement Forum Date
Water Surface Problem General Discussions and Advice 21 Nov 2014
Water Surface Milky/oily layer Beginner Discussions 26 May 2008
coral help for covering a large surface area General Discussions and Advice Tuesday at 12:03
[wtd] Surface Skimmer Cup for a Reef Octopus BH1000 HOB Skimmer Wanted Wanted 22 Jun 2016
Small white dots moving on glass surface Beginner Discussions 18 Nov 2014
Bio filter must have high surface area to volume ratio Biological/Natural Filtration and Deep Sand Beds 29 May 2014
Tropical aquarium surface film bacteria Photography 2 Feb 2014