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Fish Tank Insulation - Do you use it?

Discussion in 'Heating or Cooling of your AP system.' started by frederickjh, Jan 29, 2011.

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What do you use for insulation on your fish tank(s)? Vote for each type you have.

  1. None

    38.2%
  2. Dirt, my tank is in the ground or the sides are banked in dirt.

    14.7%
  3. Sheets of insulation such as polyisocyanurate.

    26.5%
  4. Fiberglass batting.

    11.8%
  5. Compost

    0 vote(s)
    0.0%
  6. Both insulation and dirt

    11.8%
  7. Other -> Please leave a post and tell us about it!

    8.8%
Multiple votes are allowed.
  1. frederickjh

    frederickjh New Member

    Joined:
    Oct 15, 2009
    Messages:
    14
    Hi all!

    I would like to take a poll of what users are doing insulation wise on their fish tanks. If you respond please state if your FT is outside or inside a structure as well and the size.

    What do you use for insulation?

    What is the insulation value?

    What was the measured gain in heat loss from adding the insulation?

    How are you heating your tank?

    How cold does in get where you are normally in the cold season?

    Thanks in advance for your participation!

    Frederick
     
  2. Wal100

    Wal100 New Member

    Joined:
    Sep 26, 2010
    Messages:
    53
    I used pink batts in white woven plastic bags secured to the GB sides. It has definitely stabilized my FT temps and minimized any fluctuations.

    Water temp now hangs around the 27 deg mark. No heating at all... That's the Pilbara for you. I am looking at heating options for the winter.
     
  3. Privatteer

    Privatteer New Member

    Joined:
    Jul 15, 2010
    Messages:
    30
    Sump buried, main tank has 80mm of concrete with a brick facing.
    Very stable temps takes several days for it to change.
    Follows the mean temp fairly well. ie Several days 34+ to 37deg and tank recorded a max of 27deg.
     
  4. Jens UK

    Jens UK New Member

    Joined:
    Apr 19, 2010
    Messages:
    225
    guys, my builders merchant just got in these new insulated eco building blocks...
    http://www.durisol.net/products.htm
    they would be good to enclose IBc tanks with........like.......LEGO

    there may be similar things in your parts of the world...

    cheers

    jens
     
  5. jonael

    jonael New Member

    Joined:
    Jan 20, 2011
    Messages:
    34
    Loil i'm gonna build a hospital and fighting indians and cowboy's!
    got to love lego
     
  6. Walks-In-Storms

    Walks-In-Storms New Member

    Joined:
    Jun 17, 2011
    Messages:
    716
    Excellent idea, "WAL100," and many thanks. I'm gonna try it.
     
  7. Walks-In-Storms

    Walks-In-Storms New Member

    Joined:
    Jun 17, 2011
    Messages:
    716
    A first experiment with insulation of the type WAL100 suggests confirms his experience. I used only two small metal tanks (not the ones on my actual grows bed because I'm in the process of overhauling the whole system, just buried a 65 gallon heat sink of PVC pipes), one insulated the other not, then applied ambient heat to both. The pink batts insulation reduced temperature by twelve percent.

    YAAAAAY WAL100! And thanks!
     
  8. Murray

    Murray Site Admin Staff Member

    Joined:
    Jun 4, 2009
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    7,543
    Country:
    Australia
    State:
    Queensland
    City:
    Brisbane
    That is a really good result Storms. Very interesting.
     
  9. Peter the Greek

    Peter the Greek Member

    Joined:
    Mar 8, 2014
    Messages:
    106
    Country:
    Australia
    State:
    NSW
    City:
    Sydney
    I didn't want to start a new thread. I am looking at insulating my tank and filters (about 1500L in total).

    I live in Sydney - gets down to around zero in Winter (at an absolute low) and as hot as 45 say.

    The tank and filters are mostly in the shade and well protected.

    I am thinking of wrapping them in insulation batts, covered in foil and painted (for aesthetics only)

    Also thinking of putting polystyrene foam on top of the sump and fish tank. The tank has a a good air supply, it is a problem to cover it?

    Anyone know what type of polystyrene I should use? if at all?

    P.S. the sump is largely in ground and I can't insulate the GB's but they're made of 2x4 hardwood
     
  10. frederickjh

    frederickjh New Member

    Joined:
    Oct 15, 2009
    Messages:
    14
    Hi Peter the Greek!

    One word to the wise, that I figured out in my research be careful with insulation batts.

    Fiberglass batts if they get wet will not insulate as well and may grow mold and other things inside them too. Rockwool batts do not have these problems and would be a better choice if you have them available in your area.

    On covering the tank you have to strike a balance. The surface of the tank right now is acting as a degassing mechanism in your system covering it will reduce or almost eliminate this. If you have other areas or mechanism that are degassing and your water is cycling constantly through those areas it might be possible. You just do not want to trap nitrogen and other gasses that become harmful to the fish at elevated levels in the water.

    Little known fact fish can also get the bends (divers sickness) from too much nitrogen in the body, but that is most likely not a problem for you. Aquaculturist figured this out trying to get more oxygen into the water with pure air. The longer the air is under water after you release it the more gases that are dissolved.

    They were able to get more oxygen into the water by releasing the a 10 meters down from the surface but doing this for a prolonged period of time also increased the nitrogen levels to harmful levels for the fish.

    Greetings!

    Frederick
     
    Peter the Greek likes this.
  11. Peter the Greek

    Peter the Greek Member

    Joined:
    Mar 8, 2014
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    Country:
    Australia
    State:
    NSW
    City:
    Sydney
    Hi Frederick,

    Many thanks for the advice, much appreciated. Yes I can get rockwool, no problem. I can also get polyester, it doesn't have the mold problems either. Rockwool will be cheaper though.

    Cheers,
    Peter
     
  12. kadarra

    kadarra New Member

    Joined:
    Mar 20, 2017
    Messages:
    1
    Country:
    Australia
    State:
    NSW
    City:
    Yellow Rock
    I know this is an old thread, but has anyone tried hebel blocks?
     

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