Koralia's are really loud...

Discussion in 'New To The Hobby' started by star_wolf_us, Aug 31, 2009.

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  1. star_wolf_us

    star_wolf_us Spanish Shawl Nudibranch

    Joined:
    Aug 4, 2009
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    90
    Location:
    Grinnell, IA
    So today I got about 20 gallons of RO water from a buddy and I went ahead and mixed some salt in it. I put my koralia 2's in the water to help stir the salt mix up and realized that they are loud. I think that mainly it's when they're up against the glass but I'm not sure. The guy I got the water from has a couple of koralia 2's and they weren't that loud. Anybody know any tricks to quiet them down?:confused::confused::confused:
     
    star_wolf_us, Aug 31, 2009
    star_wolf_us, Aug 31, 2009
    #1

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  2. 32Boom

    32Boom Coral Banded Shrimp

    Joined:
    Feb 6, 2009
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    394
    Location:
    MI
    My koralias aren't loud at all. Are they near enough to the surface that air gets sucked in?
     
    32Boom, Aug 31, 2009
    32Boom, Aug 31, 2009
    #2
  3. iLLwiLL

    iLLwiLL Sailfin Tang

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    Location:
    Central FL
    They tend to vibrate some, if you have the non-magnet parts up against anything hard there would probably be some kind of noise from that.

    ~Will.
     
    iLLwiLL, Aug 31, 2009
    iLLwiLL, Aug 31, 2009
    #3
  4. zjpeter

    zjpeter Ritteri Anemone

    Joined:
    Mar 18, 2009
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    609
    Location:
    Iowa
    are you talking like a humming? i bought a second k2 and it was awful. my other 2 and 1 didnt make any noise so i knew something wasnt right. i just exchanged it. my guess is the pin that runs through the impeller is slightly off balance and causing it to vibrate. you can try to maybe center it, but i would just exchange it
     
    zjpeter, Aug 31, 2009
    zjpeter, Aug 31, 2009
    #4
  5. star_wolf_us

    star_wolf_us Spanish Shawl Nudibranch

    Joined:
    Aug 4, 2009
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    Location:
    Grinnell, IA
    It's more of a vibration. The one is quiet as a mouse and the other one it's almost a vibration combined with a rattle.
     
    star_wolf_us, Aug 31, 2009
    star_wolf_us, Aug 31, 2009
    #5
  6. omgiv

    omgiv Coral Banded Shrimp

    Joined:
    May 12, 2009
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    Location:
    Stafford, VA
    You may want to email the manufacturer. I had two koralia 1's that starting this horrible rattle. I emailed them and they sent me a couple of nylon washer and that seemed to have worked. I upgraded to koralia 2's and haven't had any issues yet.

    Regards,
    Ivy
     
    omgiv, Aug 31, 2009
    omgiv, Aug 31, 2009
    #6

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  7. oceanparadise1

    oceanparadise1 Fire Squid

    Joined:
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    Soak them in vinagear and water, sometimes when mine get loud, i do this and it quites them right down! Or just do what i did and buy an mp40 :)
     
    oceanparadise1, Aug 31, 2009
    oceanparadise1, Aug 31, 2009
    #7
  8. 32Boom

    32Boom Coral Banded Shrimp

    Joined:
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    394
    Location:
    MI
    hmm. Is anyone's koralia 4 loud?
     
    32Boom, Aug 31, 2009
    32Boom, Aug 31, 2009
    #8
  9. Av8Bluewater

    Av8Bluewater Giant Squid

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    I have 2 K4s .. Totally silent.
     
    Av8Bluewater, Aug 31, 2009
    Av8Bluewater, Aug 31, 2009
    #9
  10. mattheuw1

    mattheuw1 Montipora Capricornis

    Joined:
    Feb 2, 2009
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    1,046
    Location:
    SE Wisconsin
    The older koralias were manufactured with a ceramic shaft that breaks very easily. My K3s shaft broke in 3 pieces when doing pump maintenance and it rattled like crazy, emailed hydor and they sent me new shafts and fish guards 100% free of charge.

    I also had a koralia 1 and it vibrated loudly too. What happened was I lost a little rubber o-ring that goes around the shaft into the koralia while cleaning. They sent me a little white plastic ring and now its silent.
     
    mattheuw1, Aug 31, 2009
    mattheuw1, Aug 31, 2009
    #10
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