120 G, Single Overflow or Dual Overflow?

Discussion in 'Equipment' started by yellojello, Jan 11, 2010.

  1. yellojello

    yellojello Supporting Member

    My friend gave me his used AGA 120 G (4 x 2 x 2) tank. It originally had dual corner overflows, but the guy he got it from removed one of the corners and didn't keep it (he used that side for a water change drain). I also have 2 x Coralvue CV-102B powerheads ~ 1250 gph rated each

    I am having a really really difficult time finding the same replacement from Aqueon.

    Should I...

    1. Just keep one side, and plug up the other side (I should have enough flow?)
    2. Make another corner (not rounded though) out of black acrylic (will not match and may ruin look of tank)
    3. Can I do some kind of closed loop with that extra corner?
    4. (If anyone can help me source another corner)

    I have attached some pics. Thanks.

    Attached files /attachments/sites/default/files/photo 2.jpg /attachments/sites/default/files/photo_5.jpg
  2. GreshamH

    GreshamH Guest

    #2. I don't think it would ruin the look of your tank. You could always reef back it with foam/live rock/epoxy :)
  3. Vincerama2

    Vincerama2 Evil Overlord

    Ditto the suggestion for #2. Backups are always welcome. Just don't use both overflows to the max. Meaning don't use a return pump that requires both overflows to run at max capacity.

    Once you've filled the tank, nobody will be looking at the overflows.

  4. melly mel

    melly mel Supporting Member

    +1 on both responses. I'll be doing dual O.F for my next tank. One for main and the other for emergency.
  5. 99sf

    99sf Guest

    After hearing some horror stories about overflows getting blocked, potentially causing giant problems, I would also recommend option #2. The survivors of tank crashes love to stress redundancy in systems. So two overflows would be much safer than one!

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