Welcome to MASA!

The largest marine aquarium forum on the African Continent.
Online since May 2007.

You appear to be browsing MASA as a guest user. Did you know that if you register for a FREE account, you get access to all kinds of additional privileges, and are then able to join the discussions? You will also no longer see most advertisements on the forum, and be able to tap into the full suite of tools and information that MASA has to offer. 100% free for life.

Denitrators

Discussion in 'General Discussions and Advice' started by Kanga, 27 February 2008.

Share This Page

 
  1. Kanga

    Kanga Retired Moderator MASA Contributor

    Posts: 4,576
    Joined:
    7 May 2007
    Posts:
    4,576
    Likes Received:
    22
    Location:
    In the Koeberg blast radius

    Hennie

    I have been thinking (yes it hurts when I do:whistling:) whether denitrators have any benefits for us. Do they have a place in your average reeftank, or is it just the manufacturers trying to find an alternative for the DSB.

    I guess what I am asking is

    • Under what circumstances should one look at using one of these?
    • Does it need to be run with a controller IYO?
    • Are they safe in the hands of the average aquarist?
    • If they are worthwhile, what type of unit would be the preffered one?
    Thanks
     
  2. Galibore

    Galibore Retired Moderator

    Posts: 2,829
    Joined:
    6 May 2007
    Posts:
    2,829
    Likes Received:
    17
    Location:
    Germiston

    For your first question, I'd say that you would look at running one when you don't have space for a DSB/Sump. Simply because I believe that a DSB should be the preferred method as it adds so much more than just denitrification. Whereas a denitrator does only that with the risk of sulpher poisoning.
     
  3. Kanga

    Kanga Retired Moderator MASA Contributor

    Posts: 4,576
    Joined:
    7 May 2007
    Posts:
    4,576
    Likes Received:
    22
    Location:
    In the Koeberg blast radius

    Now see thats what I am thinking, if I was "Mr. Aquarium equipment manaufacturer" a DSB would be my worst nightmare, how do I make money from it, its local glass, or plastic tubs and also some sand (even though some might be expensive sand) and that is it. So along comes the denitrator. No dont get me wrong but there is surely uses for it I would imagine but not that widespread.
    Just my thoughts I might be way off base
     
  4. Galibore

    Galibore Retired Moderator

    Posts: 2,829
    Joined:
    6 May 2007
    Posts:
    2,829
    Likes Received:
    17
    Location:
    Germiston

  5. Alan

    Alan Admin MASA Contributor

    Posts: 5,974
    Joined:
    4 May 2007
    Posts:
    5,974
    Likes Received:
    119
    Location:
    KZN

    Dont know what has happened to Hennie? I will give my views on this subject. I have seen to many accidents with denitrators to feel confidant at running one, yes they should be run with controllers. My prefered method for denitrification would be the DSB as it is totally natural and adds so much more bio diversity to a system as it becomes a living sand bed.
     
  6. jacquesb

    jacquesb Retired Moderator

    Posts: 17,871
    Joined:
    29 May 2007
    Posts:
    17,871
    Likes Received:
    68
    Location:
    Cape Town

    If I may too offer an opinion (more than fact based):
    As with everything in this hobby - "the local flavor of the day" is what makes ANYTHING popular in this hobby. The same with denitrators. As you said Kanga - the possiblity exists for someone to make money of this.

    I also think that the importance of the DSB is not impressed enough. Importance as denitrator (w.r.t nitrification process), as well as food source, and breeding ground for the micro cleanup crew.

    Yes - plans exist for DIY denitrators (geez - I have even built and used one at some stage) - BUT, I think that the usage of one is taken up FAR too lightly. As Alan said. It can even be dangerous....

    Personally I would ALWAYS tout the usage of a DSB rather than a "tool". If there was an even more natural way of exporting phosphates - than using a reactor and phosphate removal media - then I would use that too (except for using an algae scrubber, that is).... :)
     
  7. Reef Maniac

    Reef Maniac MASA Contributor

    Posts: 2,899
    Joined:
    15 May 2007
    Posts:
    2,899
    Likes Received:
    112
    Location:
    Bloemfontein

    Been working VERY hard, and have not really had time to even switch on the computer since Tuesday :(

    I used a DIY denitrator many years ago, before I discovered the magic of a DLSB. In my opinion it is at best a manufacturer's "gimmick" to make money, and although it CAN reduce nitrates, it is really not worth the cost, even if you DIY one.
    I really cannot think of any setup or circumstance where a denitrator would work better than a DLSB, either in tank, in sump, or even a sandbed-in-a-bucket...
    Yes, an ORP controller. It is quite tricky to keep the oxygen (ORP...) at just the right level (not too much O2, and not too little either...).

    Apart from the O2, one also needs to dose a (constant supply of) carbon source as food for the anaerobic bacteria.
    Safe, Hmmm... probably not too dangerous, but they can release harmful hydrogen sulphide if they become anoxic. They are probably more "dangerous" in the sense that they can lull one into a false sense of complacency, and one can wake up one morning with a nitrate problem and it's accompanying outbreak of hair algae.
    A Deep Live Sand Bed type :)

    Hennie
     
  8. DragonReef

    DragonReef Active Member

    Posts: 2,601
    Joined:
    4 May 2007
    Posts:
    2,601
    Likes Received:
    2
    Location:
    Durban, ZA

    Touche'
     
Recent Posts