Why is many people putting co2 diffusers up front?

Discussion in 'Carbon Dioxide (CO2)' started by Basviola, 7 Oct 2019.

  1. Basviola

    Basviola Newly Registered

    Joined:
    3 Apr 2019
    Messages:
    24
    Location:
    Denmark
    Ever since I fell in love with aquascaping, I have wondered why many put co2 diffusers and other equipment right in front the scape. I wonder because I personally prefer to hide away equipment.

    The same goes for cirkulation pumps... In this case it of course to get optimal flow in dead spots. That makes sense.

    Is there a specific reason for why many place the co2 diffuser so close to the front, just over their carpet?
    My own thought is that it might give better co2 for the carpet, but in case of no dead spot would the co2 not be present in the entire tank?
    Or maybe some just like the statement it gives of being a high tech tank?

    About creating the optimal cirkulation... it would be straightforward to place powerhead in the front of the aquarium and support filter outlet in creating a vortex effect.
    I would like to hear your feedback on the following idea, as I might soon need a powerhead to create better circulation:

    If the scape and placement on plants allows it would it make sense to attach some piping to the powerhead, so you could hide it away better. I am thinking you could get even more out of the pump, when making a bigger distance from the powerheads intake, and outlet. I might be wrong here, but at least it could be an idea on how to make equipment look less disturbing on the aquascape.


    Thank you for sharing your insight...




    And please dont banned my profile for asking this!
    If you have a tank with all equipment very visual, It is 100% ok with me, what ever satisfy you and makes you happy... it is just my opinion and maybe, maybe not, a good simple ide on how to create optimal cirkulation in a tank without being too intimidating on the scape it self.
    All this is very obvious, but I got banned from aquascapingworld.com for asking theise questions, and sharing the idea in a journal with a very nice aquascape with a lot of visual equipment. This made me very sad. And I do not wich to get banned here for asking these quistions.
    And yes, I still wonder why... if the person who banned me is reading here, please reconsider if this was fair, as i would love to get my journal on ASW back, so I can read all the great feedback I got, decide among the many plant suggestions and so on... (or at least send me a private message here, and tell me what I did to upset you so much)
     
  2. Andrew Butler

    Andrew Butler Member

    Joined:
    1 Feb 2016
    Messages:
    1,261
    Location:
    Banbury, Oxfordshire
    You're not the only one; I hate seeing things in my aquarium and probably have more OCD (obsessive compulsive disorder) over the hardware in my aquarium than the plants and hardscape.
    There are simple ways around things like using inline CO2 diffusers for injecting CO2.
    Aside from in tank CO2 diffusers possibly being more effective I do believe many people like to look at these type of things in their aquarium, that's down to personal choice though.

    Why you think you would get banned from UKAPS for saying things in the way you have above I've no idea.
    Why not start a journal/thread on here instead, maybe copying what you published elsewhere - lots of friendly, knowledgeable and helpful people here.

    Just my opinion here but if you find yourself needing to add a powerhead to support the exact flow from your filter outlet that says to me that your filter is simply under-powered and by upgrading your filter that could solve the problem. (I assume I am understanding this is what you mean?)

    I'm unsure I understand what you mean here, maybe a drawing would be useful.
     
    Andy Taylor, Jayefc1 and Siege like this.
  3. Edvet

    Edvet Forum Moderator Staff Member

    Joined:
    15 Aug 2013
    Messages:
    5,040
    Location:
    Lelystad, Netherlands
    In general the most effective way to distribute the CO2 in the tank is through a spraybar over the entire length of the back of the tank putting out enough volume to create a circular flow in most of the tank ( back top to front top, front top to front bottom, front bottom to back bottom, back bottom to back top). Most effective way to get CO2 in the water is a large reactor ( for large tanks DIY) or even two. There is evidence having small bubbles of CO2 in the watercolumn might be beneficial for uptake so combining a reactor with microbubbles might be usefull ( personally i think if you can dissolve enough in the column microbubbles aren't needed)
    A pH profile is the best way to asses the effectivity of your CO2 dosing.
     
  4. Tom Michael

    Tom Michael Member

    Joined:
    16 Nov 2014
    Messages:
    143
    All valid questions- as with many aspects of the hobby there are different ways of achieving the same results depending on you specific tastes/budget/size of aquarium etc etc (the variables!)

    I have used in tank diffusers, reactors, in line diffusers, and feeding C02 into an internal filter. All have had success but I now exclusively use in tank diffusers positioned at the front of the aquarium with a lily pipe at the opposing end forcing the bubbles down and around.

    For me, this has been the most effective method as I can see what is happening more easily. Flow is really important so if the diffuser was in the back some where I may miss that my filter has reduced flow and needs a clean. Small changes equals big problems in a high light system. Equally the scape is really important here. Most have stems, tape plants in the rear and therefore it may not be effective or visually appealing to have the outflow or powerhead blasting these plants all the time.

    In terms of hiding equipment as I use glass lily and a small diffuser I don't find this a distraction. A powerhead on the other hand would be. As previously mentioned you could use an inline diffuser and many people have great success with these, but not my preference as I like to easily see the gas flowing down and around.
     
    Andy Taylor, Jayefc1 and Siege like this.
  5. Basviola

    Basviola Newly Registered

    Joined:
    3 Apr 2019
    Messages:
    24
    Location:
    Denmark
    Thanks for all the explanation, I will properly experiment with it as well. But now I know, that if however dissolved CO in the water gets to the plants, it's all good.
    And yes and it is so true it will always come down to personal taste. If you can think it, some loves and hate it.

    The importance of good cirkulation makes more and more sense to me!


    akvarie cirkulations ide.jpg

    Tank is 128 liters, and filter is a corner HMF (1000 l/h powerhead).
    Cirkulation is only created by filter outlet, blue arrows visualise current flow in the tank.

    I have a relatively dead spot in the lower right hand corner, just before the water returns to the filter.

    To help cirkulation, and supporting the vortex it would be very good (and disrupting IMO) to place a powerhead, as drawn in red on my picture.

    The "purple" in the drawing, is my guess on how to get the most out of a powerhead, and eventually hide it also.
    The yellow is PVC tubing and/or PIPE, to direct the outlet to and in the desired position .

    With getting the most out of a powerhead according to cirkulation, I was thinking that by creating distance between inlet and outlet of the powerhead, it could be beneficial being creating additional water flow on two places, and not just one?

    Anyway I will start dosing CO2 in this tank in near future, and ended up getting bazookas in tank diffusers from co2 art.

    Would the best place for the diffuser be in the back LH corner, as the water gets pushed down when hitting the glas?
    How importen would ekstra cirkulation be, when adding co2?


    Thanks again
     
  6. Andrew Butler

    Andrew Butler Member

    Joined:
    1 Feb 2016
    Messages:
    1,261
    Location:
    Banbury, Oxfordshire
    As @Edvet mentioned before a spraybar is about the most effective way to get even flow around an aquarium and I completely agree with him.
    It looks like you have a black background to your aquarium so you could also use a black spraybar so it does not stand out so much.
    I would say that good, even circulation is important - CO2 or no CO2 so if you have a dead spot I think that resolving this would be good regardless.
     
  7. Basviola

    Basviola Newly Registered

    Joined:
    3 Apr 2019
    Messages:
    24
    Location:
    Denmark
    Guess I will have to try that out... but the look I think it will give makes me wonder:

    Have someone tried mounting the "bar" above water surface, and have "L" shaped nozzles just reaching into the surface?
    Think that could give a more discreet look.
     

Share This Page

Facebook Page
Twitter Page
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice