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    Exclamation Cooling down UTH for night temps?! So confused - please help!


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    Hello!

    I am hoping to get some help with cooling down my leos UTH. I set the thermostat to 85F with a range of 5F hotter or cooler during the day. At night I would like it to go down to 75F +/-5F. Warming up the tank to get it around 85 by the time my leo is active in the morning is easy enough but I cannot seem to get it down to 75 for night temps in time. Usually, by the time it reaches 75 it has to go back up to 85. I dont want to put stress on the thermostat and break it by making it fight all day to cool the mat down. Is there something I am doing wrong? Please help! Below is the information for what I am using. Thank you!

    • Tank: Exo Terra 24x18x12 20 gal medium/low
    • UTH: Flukers heat mat 6x11
    • Thermostat: Inkbird WiFi ITC-308
    • Substrate: Exo Terra sand mat
    • I also have a 75 watt CHE on during the day

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    I don't know why you would want those temps, in all honesty. The best floor temp (which your thermostat is providing) is low 90s on the hot side. It can stay like that all the time. If the geckos are too hot, they go over to the cool side, which is why they have a cool side. In my opinion (others may disagree) the CHE is going to superheat and dry out the air which may dehydrate the gecko, especially in the summer. I recommend setting the UTH for 90, leaving it on all the time and ditching the CHE.

    Aliza
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    Quote Originally Posted by acpart View Post
    I don't know why you would want those temps, in all honesty. The best floor temp (which your thermostat is providing) is low 90s on the hot side. It can stay like that all the time. If the geckos are too hot, they go over to the cool side, which is why they have a cool side. In my opinion (others may disagree) the CHE is going to superheat and dry out the air which may dehydrate the gecko, especially in the summer. I recommend setting the UTH for 90, leaving it on all the time and ditching the CHE.

    Aliza
    Thanks! I was basing it off of things that I have seen on the internet but I am realizing now that the 75 at night is for ambient not ground.

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    Hi ~

    What are the room low temps during the night where your leo's enclosure sits? IF they are roughly 67*F, you could turn off the thermostat (heat mat and CHE) during the night. Don't worry about an ambient temp gradient.

    Can you get the desired ground temps using only your 6 x 11 inch heat mat? If not, I recommend an 11 x 17 inch Ultratherm heat mat for an Exo Terra 24 x 18 x 12 inch tall Exo Terra + a styrofoam sheet on top of the Ultratherm. Place Ultratherm:
    underneath glass bottom
    Then Ultratherm heat mat
    Cover Ultratherm with sheet of styrofoam

    IF you also use a CHE make sure the ambient temps follow this chart. The CHE may require a dimmer/rheostat or a second thermostat.
    Temperatures - A temperature gradient from warm to cool maintains your leo's health. Here's a temperature guide for all leopard geckos as measured with the probe of a digital thermometer or a temp gun (and controlled by a thermostat set at 91*F/32.8*C).

    Place the thermostat's probe and a digital thermometer's probe together right on top of the substrate underneath the warm dry hide. If you use a UTH + a CHE you'll need 2 separate thermostats, because ground and air temperatures are substantially different.

    • Warm dry hide ground temperature: 88-92 F (31.1-33.3 C) inside a leo's warm dry hide.
    • Warm humid/moist hide: Also place the humid hide 100% on top of the heat mat. Keep temperatures similar to the warm dry hide.
    • Cool dry hide ground temperature: 70ish-75 F (21.1-23.9 C) Usually the cool end ground temperature matches the room temperature where the enclosure sits.
    • no greater than 82ish F (27.8ish C) air temperature - 4 inches (10 cm) above ground on the warm end
    • no greater than 75 F (23.9 C) air temperature - 4 inches (10 cm) above ground on the cool end

    Leave the heat mat/UTH on 24/7. If you wish, during the night turn off overhead lighting/heating (~12 hours on and ~12 hours off) unless ambient room temperatures drop lower than 67ish*F (19.4*C).
    Last edited by Elizabeth Freer; 06-07-2020 at 07:22 AM.
    "If you can hear crickets, it's still summer." ;)

    "May the peace that
    You find at the beach
    Follow you home"

    Click: Leo Care Sheet's Table of Contents

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

    Oedura castelnaui ~ Lepidodactylus lugubris ~ Phelsuma barbouri ~ Ptychozoon kuhli ~ Cyrtodactylus peguensis zebraicus ~ Phyllurus platurus ~ Eublepharis macularius ~ Correlophus ciliatus ~ (L kimhowelli) ~ (P tigrinus) ~ (P klemmeri) ~ (H garnotii)

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    Thanks so much!!!

    Honestly I am not sure what the temperatures of my room itself are at night. As far as the temp gradient with the UTH only it seems pretty spot on except that the cool side is about 3 degrees over when I am using both the CHE & UTH. Ambient temps with only the UTH & with both the UTH & CHE are good on the warm side but on the cool side in both scenarios it is too hot by about 2 degrees.

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    Quote Originally Posted by hannahbandana View Post
    Hello!

    I am hoping to get some help with cooling down my leos UTH. I set the thermostat to 85F with a range of 5F hotter or cooler during the day. At night I would like it to go down to 75F +/-5F. Warming up the tank to get it around 85 by the time my leo is active in the morning is easy enough but I cannot seem to get it down to 75 for night temps in time. Usually, by the time it reaches 75 it has to go back up to 85. I don’t want to put stress on the thermostat and break it by making it fight all day to cool the mat down. Is there something I am doing wrong? Please help! Below is the information for what I am using. Thank you!

    • Tank: Exo Terra 24”x18”x12” 20 gal medium/low
    • UTH: Fluker’s heat mat 6”x11”
    • Thermostat: Inkbird WiFi ITC-308
    • Substrate: Exo Terra sand mat
    • I also have a 75 watt CHE on during the day
    Quote Originally Posted by hannahbandana View Post
    Thanks so much!!!

    Honestly I am not sure what the temperatures of my room itself are at night. As far as the temp gradient with the UTH only it seems pretty spot on except that the cool side is about 3 degrees over when I am using both the CHE & UTH. Ambient temps with only the UTH & with both the UTH & CHE are good on the warm side but on the cool side in both scenarios it is too hot by about 2 degrees.
    You're welcome! Leos are crepuscular. Leos are active at dusk, during the night, and at dawn. They usually sleep during the day.

    Does your thermostat actually vary +/- 5*F? Have you tried setting your thermostat for 87-88*F? Your warm end should range between 88-92*F. It's impossible to cool the enclosure cooler than your room temps. That's why I asked.

    I set my Hydrofarm Jump Start thermostat for 91*F. There is no greater than a -3*F variation from when the thermostat turns off the heat mat until the thermostat turns on the heat mat again.

    Please share a photo of your leo's enclosure.
    Last edited by Elizabeth Freer; 06-08-2020 at 07:01 AM.
    "If you can hear crickets, it's still summer." ;)

    "May the peace that
    You find at the beach
    Follow you home"

    Click: Leo Care Sheet's Table of Contents

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

    Oedura castelnaui ~ Lepidodactylus lugubris ~ Phelsuma barbouri ~ Ptychozoon kuhli ~ Cyrtodactylus peguensis zebraicus ~ Phyllurus platurus ~ Eublepharis macularius ~ Correlophus ciliatus ~ (L kimhowelli) ~ (P tigrinus) ~ (P klemmeri) ~ (H garnotii)

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    Quote Originally Posted by Elizabeth Freer View Post
    You're welcome! Leos are crepuscular. Leos are active at dusk, during the night, and at dawn. They usually sleep during the day.

    Does your thermostat actually vary +/- 5*F? Have you tried setting your thermostat for 87-88*F? Your warm end should range between 88-92*F. It's impossible to cool the enclosure cooler than your room temps. That's why I asked.

    I set my Hydrofarm Jump Start thermostat for 91*F. There is no greater than a -3*F variation from when the thermostat turns off the heat mat until the thermostat turns on the heat mat again.

    Please share a photo of your leo's enclosure.
    Currently I have the thermostat for the UTH set to 88-92 with high and low alarm values set to 94 & 86.

    Here is her set up! She's a bit of a messy girl & I'm still in the process of getting things perfect.20200612_084453.jpg

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    Quote Originally Posted by hannahbandana View Post
    Currently I have the thermostat for the UTH set to 88-92 with high and low alarm values set to 94 & 86.

    Here is her set up! She's a bit of a messy girl & I'm still in the process of getting things perfect.20200612_084453.jpg
    Thanks, Hannah. Those temps sound excellent!

    Here's a suggestion for your twisty vine. Since leos are full-bodied geckos, I recommend twisting two vines together to give your leo a more secure footing. Bend the vine you already have in half OR purchase a thick vine and twist it with the thin vine.
    Last edited by Elizabeth Freer; 06-12-2020 at 01:08 PM.
    "If you can hear crickets, it's still summer." ;)

    "May the peace that
    You find at the beach
    Follow you home"

    Click: Leo Care Sheet's Table of Contents

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

    Oedura castelnaui ~ Lepidodactylus lugubris ~ Phelsuma barbouri ~ Ptychozoon kuhli ~ Cyrtodactylus peguensis zebraicus ~ Phyllurus platurus ~ Eublepharis macularius ~ Correlophus ciliatus ~ (L kimhowelli) ~ (P tigrinus) ~ (P klemmeri) ~ (H garnotii)

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    Quote Originally Posted by Elizabeth Freer View Post
    Thanks, Hannah. Those temps sound excellent!

    Here's a suggestion for your twisty vine. Since leos are full-bodied geckos, I recommend twisting two vines together to give your leo a more secure footing. Bend the vine you already have in half OR purchase a thick vine and twist it with the thin vine.
    Oh thank you that's a great idea! Maybe she will actually use it if I do that! I rescued her from a friend who didn't want to feed her anymore and I wanted to try and keep what I could in the tank that way she didn't feel too out of place - that vine is one of the pieces.

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    Quote Originally Posted by hannahbandana View Post
    Oh thank you that's a great idea! Maybe she will actually use it if I do that! I rescued her from a friend who didn't want to feed her anymore and I wanted to try and keep what I could in the tank that way she didn't feel too out of place - that vine is one of the pieces.
    You're welcome.

    Thanks for providing this leo a loving home. Well-kept (and loved) leos can actually live into their 30s or longer (people years)!
    "If you can hear crickets, it's still summer." ;)

    "May the peace that
    You find at the beach
    Follow you home"

    Click: Leo Care Sheet's Table of Contents

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

    Oedura castelnaui ~ Lepidodactylus lugubris ~ Phelsuma barbouri ~ Ptychozoon kuhli ~ Cyrtodactylus peguensis zebraicus ~ Phyllurus platurus ~ Eublepharis macularius ~ Correlophus ciliatus ~ (L kimhowelli) ~ (P tigrinus) ~ (P klemmeri) ~ (H garnotii)
    Thanks hannahbandana thanked for this post
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