Humidity under my basking bulb, help!

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Humidity under my basking bulb, help!

Postby WarpedHowl » Thu Aug 01, 2019 9:08 am

Hey, so I'm getting my tank set up for a beardie that I plan on getting pretty quick, and I have two digital thermometers on either end of my tank that measure humidity levels and temperatures. The temp of it is 35⁰C but the humidity levels under it sits normally between 20-25% while humid levels at the other end of my tank normally sit at about 45%. I was wondering if that's alright or if you know something that would help. I've considered misting the one side a little, but I don't want to increase the humidity levels at the other end since they're already pretty high
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Re: Humidity under my basking bulb, help!

Postby claudiusx » Thu Aug 01, 2019 10:11 am

Nope you're humidity levels are fine! It will naturally be lower on the hot side. Everything sounds good!

Is 35c the basking surface temp or the hot side temp?

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Re: Humidity under my basking bulb, help!

Postby WarpedHowl » Thu Aug 01, 2019 10:29 am

Hey Brandon, thank you for helping. And the temp was for the basking spot, although I wasn't looking at the thermometer yet, but it sits at 37.2⁰C. That alright?
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Re: Humidity under my basking bulb, help!

Postby claudiusx » Thu Aug 01, 2019 10:42 am

37 is a bit low at the basking site. It is probably ok for an adult but I'd try to bump it up a couple degrees or so if you can. Babies like a range of 40 to 43.

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Re: Humidity under my basking bulb, help!

Postby diamc » Sat Aug 24, 2019 11:32 am

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Re: Humidity under my basking bulb, help!

Postby KarrieRee » Sat Aug 24, 2019 12:12 pm

Those digital thermometers are they a stick on or a actual digital w/ a probe-? I just saw a digital in a tank that was just that no probe-
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Re: Humidity under my basking bulb, help!

Postby kingofnobbys » Sat Aug 24, 2019 8:59 pm

KarrieRee wrote:Those digital thermometers are they a stick on or a actual digital w/ a probe-? I just saw a digital in a tank that was just that no probe-
Karrie


If there is no remote (on a long wire) probe , I'd replace it with digital probe that has a remote probe , this will give you more options
ie
> dangle the probe in the air , will measure radiant heat from basking globe or CHE + air temperature ( natural convective heat transfer (in a proper enclosed tank (solid lid) or if the top is "open" warmed air before it escapes to warm up the boundary layer of air just below the room's ceiling
> place the probe so it near the warm zone wall or cool zone wall but not in contact with the wall surface , this will give an indication of a combination of circulating air temperature + radiant heat
> place the probe so it's directly under the basking globe but not in physical contact with the basking spot's surface , will give an indication of the direct radiant heat and the temperature of turbulent airflow rising from the warmed basking spot's surface + reflected radiant heat from the basking spot
> place the probe so it is in direct physical contact with the basking spot's surface and directly under the basking globe , will indicate the combined temperature from the warmed basking spot ( by conduction of heat from the surface to the probe ) + radiant heat from the basking spot , conductive heat transfer to the probe in this instance will be minimal ( inside the laminar convective boundary layer ).
> place the probe so it's under the basking spot but not in physical contact with the structure of the basking spot , this will give an indication of air temperature ( by convective heat transfer to the probe ) in the basking spot and will shield the probe from radiant heat transfer.
> place the probe under hide (not in physical contact with the hide or the substrate) , will indicate the air temperature under the hide by convective heat transfer to the probe.
> place the probe in the substrate (if you have non-solid substrate) , will give the substrate temperature by heat conduction to the probe.
Much more versatile than a digital thermometer with a builtin temperature sensor and more accurate and meaningful and useful temperatures are attainable.

Humidity : if it's under 70 % it's fine. Short excursions in RH to 80% or there abouts are also acceptable .
CBDs: Cleopatra & Caesar born 28Jan19.
Puff (RIP 10Dec15),Rex (RIP 16Mar17),Toothless (RIP 26Nov17).Peppa (RIP 22Mar19).
EBTSs : George & Mildred (born july 2010).
EWSs : new rescues Gutzy (F) 27Sep19, juvenile Cheakie (M) 21Oct19
Fluffy (F) rescued injured by lawnwacker 14Nov17, Wriggles (F) - injured rescue, over 8 yrs old, RIP 2Feb16 old age. Lucky juvenile (M) - cat attack rescue (lost r-eye, broken r-lower jaw), fatal SI RIP 21Jul2010.
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