Trout Growers

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Aquaponists who are growing their plants with trout
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What do yo do to keep your trout tank water cool?

by Tom OBrien

Jul 1, 2012

Do you try to cool your fish tank water? Or do you just monitor the water and maybe feed less when the temperature goes up? I've got the fish tanks in the basement so they aren't seeing the 90 degree temps we have outside right now, but the water temperature hit the 70 degree mark this week. The fish who've made it this far seem to be doing fine and are still feeding vigorously and growing. I just wondered what all you experienced trout growers do when it gets hot outside.

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  • up

    Jim Fisk

    Why? Just don't drill thru the plumbing

    Jeremiah Robinson said:

    If you read my posts on finding a freezer, I changed my mind on leaving the cooling system intact.  Bad idea!

    Here are some other ways.

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    Aug 19, 2014

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    Lisa O'Toole

    Actually it takes energy to make water evaporate. The concept is that warmer water has more kenetic energy, and as this leaves the mass of liquid water, becoming water vapor, cooler water is left behind.

    Averan said:
    That doesn't make sense. Evaporative or 'swamp' coolers chill AIR by warming the water. If the air temp is high, it is surely higher than your water and spraying it will only serve to warm your water. Everyone running a flood and drain media bed in the summer knows this first hand.

    Am I missing something here?

    Jan 4, 2015

  • up

    Lisa O'Toole

    The cool water will fall to the lower level, so why not put cool in at mid level, and at the other end of the tank take warm water off the top? If the objective is to cool down the water why take cooler water from the bottom?

    Mark Hall said:

    Daniel....In my experience 4 to 6 feet in the ground might only get you a few degrees in temperature change. Geothermal engineers will tell you that at 25' below ground you arrive at a constant temp. that is mean (or average) temp of your area. Near San Antonio Texas if we go 25' down we will find constant 75 to 78  degree temps. 

    I'd be interested if you can prove me wrong, and get some chilling at 6'.

    Daniel Budfuloski said:

      Don't know if this would work (but it is what I plan on doing with my system when I get it up and running).  I'm going to have a sump tank burried 4-6 feet down (where the temperature stays at a constant 50-55 degrees and has the effect of thermal cooling/heating) and have it pumped up to the surface of my fish tank that is burried half in the ground.  Then i'm going to siphon the water off the bottom of my fish tank to the grow beds.  My theory is...  with constant 50-55 degree water pumped to the top of my fish tank and then being pulled to the bottom by the siphon effect, it will keep my whole tank the same tank year round.  Do you guys think it will work?

    Jan 4, 2015