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    Default Cool side too hot?


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    Im setting up a tank for my future leopard gecko and Ive been monitoring the temps all day. The hot side has stabilized around 86 degrees F and the cool side, 78 degrees F. I know this is too hot for the cool side, but idk how to establish a better gradient! Should I get a smaller dome light, different bulb, larger tank..?

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    Could you tell us more about your set up? How are you heating the tank? What is the tank size? Are you measuring the ground or air temps? (I assume ground but just want to be sure ^^ )


    Is the dome light his main source of heat? Leopard geckos typically use under tank heaters (UTHs), not heat bulbs, unless the air temperate is very cold and a ceramic bulb is needed to boost it.
    Your temps don't sound very far off to me, maybe two degrees off on either end. Hides and platforms can sometimes provide cooler areas, if the heat is coming from below then maybe a simple lifted hide could provide a cool place for your gecko?

    It is easiest to provide a gradient in a 20g long, I struggled with a 10 gallon for quite I while before upgrading.
    Last edited by vastra; 02-16-2018 at 04:42 AM.
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    Quote Originally Posted by vastra View Post
    Could you tell us more about your set up? How are you heating the tank? What is the tank size? Are you measuring the ground or air temps? (I assume ground but just want to be sure ^^ )


    Is the dome light his main source of heat? Leopard geckos typically use under tank heaters (UTHs), not heat bulbs, unless the air temperate is very cold and a ceramic bulb is needed to boost it.
    Your temps don't sound very far off to me, maybe two degrees off on either end. Hides and platforms can sometimes provide cooler areas, if the heat is coming from below then maybe a simple lifted hide could provide a cool place for your gecko?

    It is easiest to provide a gradient in a 20g long, I struggled with a 10 gallon for quite I while before upgrading.
    IMG_0972.jpg here it is. im using a daylight basking bulb to heat the tank. im measuring ground temps and i believe its a 10 gallon but i have to make sure. i plan on buying an UTH today and removing the overhead light and seeing how the temp goes. if theres not enough heat ill use a ceramic heater and see how that goes. but i have a feeling i might need to upgrade the tank size
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    Please share the dimensions. That way we'll know what size enclosure you have. That way I'll be able to recommend a particular heat mat.

    You've got another thread going.
    "If you can hear crickets, it's still summer." ;)

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    ===> No plain calcium, calcium with D3, or multivitamins inside an enclosure <===

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    Quote Originally Posted by Elizabeth Freer View Post
    Please share the dimensions. That way we'll know what size enclosure you have. That way I'll be able to recommend a particular heat mat.

    You've got another thread going.
    ill measure it when i get home! and yeah I know sorry about that, idk why i started a new thread. this is also my first time with forums haha
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    I too have a 10 gallon tank. I am using 8"x6" ZooMed UTH pad. I have it adhered to the outside bottom of my tank, all the way over against the left side of the frame. It covers about 1/3 of the tank floor (maybe just a tad more). I also have the JumpStart Thermostat to control the UTH temp. I keep my warm side set at 92. The cool side is always between 74-78. I too have 3 hides. My gecko moves between them. It took awhile for him to start using the moist hide, but he's been checking it out since his last shed the other day. You won't need the ceramic heat bulb unless the room you're keeping your tank in gets kinds cold. I have my gecko in a spare room, and we turn the heat off in that room, so I definitely need the ceramic heat bulb to keep the temp on his cool side in the 70's, but I'm not sure this is for everyone. I guess it depends on the air temp in the room you're keeping him in.

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    Quote Originally Posted by GeckoFanboy View Post
    I too have a 10 gallon tank. I am using 8"x6" ZooMed UTH pad. I have it adhered to the outside bottom of my tank, all the way over against the left side of the frame. It covers about 1/3 of the tank floor (maybe just a tad more). I also have the JumpStart Thermostat to control the UTH temp. I keep my warm side set at 92. The cool side is always between 74-78. I too have 3 hides. My gecko moves between them. It took awhile for him to start using the moist hide, but he's been checking it out since his last shed the other day. You won't need the ceramic heat bulb unless the room you're keeping your tank in gets kinds cold. I have my gecko in a spare room, and we turn the heat off in that room, so I definitely need the ceramic heat bulb to keep the temp on his cool side in the 70's, but I'm not sure this is for everyone. I guess it depends on the air temp in the room you're keeping him in.
    Im keeping the tank in my bedroom which doesnt really go under 68 degrees. I bought an UTH today as well as a red low watt bulb and so far the hot side has stabilized at 82 degrees. I want to get it to 90 but the cool side is finally in the low 70s and Im afraid it might go up if I raise the wattage of the bulb again

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    How are you checking the temps on the warm side? Remember, it's the floor temp that is crucial. You need to make sure the floor temp on the warm side is between 88-94. I have mine set for 92 and my gecko seems to like that temp.

    You have the same size tank as I do. Make sure the UTH is all the way against one side of the tank. Are you using a thermostat? You need that to control the UTH temp. You don't want the UTH getting too hot. Most likely, when you get the warm side temps stable around 88-92, the cool side will most likely end up at around 74-78. At least that's how it's working on my 10 gallon tank.

    Also, remember with a UTH pad...it takes around 6 hours after you've hooked it up and plugged it in, for it to reach it's stable temp.
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    Quote Originally Posted by GeckoFanboy View Post
    How are you checking the temps on the warm side? Remember, it's the floor temp that is crucial. You need to make sure the floor temp on the warm side is between 88-94. I have mine set for 92 and my gecko seems to like that temp.

    You have the same size tank as I do. Make sure the UTH is all the way against one side of the tank. Are you using a thermostat? You need that to control the UTH temp. You don't want the UTH getting too hot. Most likely, when you get the warm side temps stable around 88-92, the cool side will most likely end up at around 74-78. At least that's how it's working on my 10 gallon tank.

    Also, remember with a UTH pad...it takes around 6 hours after you've hooked it up and plugged it in, for it to reach it's stable temp.
    Im measuring the heat with a digital thermometer with the probe hovering right above the floor. The UTH takes up about 1/3 of the tank. Havent bought a thermostat yet
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    Well, you definitely need a thermostat. The Jump Start Thermostat is awesome. It's cheap and effective...works great. Right now, you have no way of controlling the rising temp of that UTH. If I were you, I'd buy the thermostat, and then your temp problems are gone.

    Don't panic though. For years, I NEVER used a UTH, but just used a bulb to keep the tank at a steady 80-85. My gecko lived that way for 17 years. The only thing is, I don't think he digested food as smoothly as he should have because he didn't have the belly heat that aids their digestion. My new gecko has the UTH and he loves it, and he eats and poops regularly.
    Last edited by GeckoFanboy; 02-16-2018 at 09:22 PM.
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