Filter Media

Discussion in 'Filters, Filtration and Pumps' started by Paddy, 22 Jan 2009.

  1. Paddy

    Paddy Newly Registered

    Messages:
    22
    As most of you are aware i am currently in the process of setting up a new tank.
    I'm currently trying to get all the hardware set-up and part of this is deciding which filter media to use in my external filter.

    I am planning on using the following.

    - Bottom of filter = Ferplast blurings
    - Bottom / Mid Filter = Eheim Ehifix gross
    - Middle of filter = Eheim Substrat Pro
    - Top of filter = Eheim EhiKarbon + capata leaf + filter wool

    Is this selection ok or would you recommend using something else.

    Suggestion Please!!!
     
  2. ceg4048

    ceg4048 Expert/Global Moderator Staff Member

    Messages:
    8,953
    Location:
    Chicago, USA
    Hi,
    Seems like an awful lot of complication and different things to buy. Assuming this is a modern Eheim filter I would just use Effimech (or it's Fluval or Ferplast equivalent due to lower price) on the bottom tray and fill the other trays with Effisubstrat and call it good. If this is a high light tank you can place a bag or two of Purigen or zeolite in the top tray which helps remove organic nitrogen. This makes life simple. 8)

    Cheers,
     
  3. gerlewis

    gerlewis Member

    Messages:
    70
    Hi guys, I have a second hand aqua one filter, would this be an acceptable way of filling it up, albeit a little unorthodox:

    Bottom Tray: Scrubbies, as many as will fit until full

    Top tray, Included filter sponge, then a few more scrubbies, then an inch thick layer of filter floss (JBL)

    or should I change it ie remove scrubbies from top tray, and or leave some trays not filled to brim?

    Thanks

    Ger
     
  4. itstricky11

    itstricky11 Member

    Messages:
    42
    Location:
    Norwich, Norfolk
    Hi Ger,
    Forgive my stupidity, but what are scrubbies? I might be missing out on something here!
     
  5. gerlewis

    gerlewis Member

    Messages:
    70
  6. Steve Smith

    Steve Smith Member

    Messages:
    4,428
    Location:
    Leamington Spa, UK.
    Not sure how good Scrubbies would be for bio media? Not sure I'd trust them personally :)
     
  7. ceg4048

    ceg4048 Expert/Global Moderator Staff Member

    Messages:
    8,953
    Location:
    Chicago, USA
    Well bacteria will adhere to whatever surface area available, but for maximum efficiency why would you choose pot scrubbers over say, activated carbon shown at the bottom of the chart which is 100X more effective? Sintered glass media like Efisubstrat have a claimed surface area on the order of 20,000 Sq Ft per US gallon or around 120,000 Sq Ft per cubic foot (that chart compares cubic feet). Therefore, even though Efisubstrat is expensive it's a heck of a lot better for your tank than pot scrubbers.

    That's a neat chart though. I hadn't seen those numbers before. These are nice comparisons Thanks for that! :D

    Cheers,
     
  8. gerlewis

    gerlewis Member

    Messages:
    70
    Well I guess you wouldn't for maximum efficiency. But, if scrubbies hold 'more than enough' bacteria then at 89 pence I know which one I would chose.

    The trouble is, I dont know if scrubbies do hold 'more than enough' ...

    Ger
     
  9. ceg4048

    ceg4048 Expert/Global Moderator Staff Member

    Messages:
    8,953
    Location:
    Chicago, USA
    Well, if you can maximize the surface area you will maximize the population of nitrifying bacteria. This has implications not only for detoxifying the tank and for allowing for example, a higher stocking level, but it also has implications for alga control because more bacteria, along with the plant mass can process a higher ammonia load thereby suppressing one of the major triggers of algal blooms. The pot scrubbers may not be enough depending on your stocking levels, feeding regimen, lighting, plant biomass and so forth.

    Cheers,
     
  10. gerlewis

    gerlewis Member

    Messages:
    70
    Thanks. A useful reply, much appreciated.
     

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