Questions/help with heat

Cobb89

New member
I'm having some issues and concerns with the heat of my tank with my Leo in it. Let me give you guys some background on the housing and the situation in general.

Brought home my Leo the other day from a previous owner. The Leo, according to the previous owner, is roughly 1.5-2 years old, give or take. The tank is a 20 gallon long tank with tile for substrate. Theres a what I think is called a NatMag hide on the cool side, one of those magnetized hides that you can see in.

The heat source is a I think 160 watt red light.

Here is where my concerns and questions begin.

The previous owner left the red light on 24 hours a day and placed a standard desk light over the cage for day time light 12hrs on 12hrs off. The red light was just a constant source of heat, I imagine it got incredibly warm inside when they had the red and day light on. When I brought it home I put the red light on a 12/12 timing rotation, but the first night I noticed that the warm side dropped to like 70 degrees incredibly fast. I keep my apartment at around 75 and run a fan at night. I didnt think this would be an acceptable temperature, especially considering it could have dropped more. The temp change happened in only maybe 20 minutes. So for about three days he has just had his red light on the entire day, around the clock. During the day I keep my ceiling light on to simulate day light. Between my window blinds being open, my ceiling light, and the red light he's pretty set in the day time.

Tonight I was watching a movie in my room with the door closed and personally felt cool so I didnt have the fan on. I peered down at the warm side thermomoter and saw that it was at 90 degrees and that the cool side was at 80. Which I had personally never noticed before, but its certainly possible that it had reached or surpassed that temperature before. I'm not certain. I was worried that this would be too hot so I decided to turn the red light off for a little while to let the temp drop. I went to the bathroom and about a minute afterwards when I returned I could tell by the light of my tv that he had already come out of his hide and was roaming around, it was now pretty dark in his tank, I assumed his nocturnal instincts were kicking in.

I was hoping to maintain 85 degrees in the warm side, or there about, throughout the day. But it appears that a) the red light will far surpass that temperature and b) that he really wants it off at night so he can roam around. It's also pretty hard for me to sleep with the red light on. I'm not positive how far the temp drops in the evening without the light on. I'm going to turn my fan on to simulate my normal preferences and periodically check the temp gage to see.

So in light of all this, I was thinking of getting one of the under tank heat pads. I'm not immedietely familiar with the sizes, wattages, and such so I was wondering if a) this was a suggested route and b) which size I should get for a 20 gallon tank. Also...I've got my tank on the floor. I have carpet. Can I place the pad between the tank and the carpet and not run risk of fire? Or could I even place the tank underneath the tile in the tank if at all possible?

Is there something else I should consider? Or I'm also curious if I should even worry. I could just set the light to run a 12/12 cycle and just have anything on in the evening. I suppose I'll have a better idea if thats possible after I watch the temperature tonight.

I've really rambled on here and I appreciate all of your time if you've read this far. Any help will be greatly appreciated as always.

***I started writing this at around 1:50am. When I finished at 2:05am the temperature on the warm side had dropped from 90 to 80 degrees. I'll post later when I see how much more it has changed.
 

Cobb89

New member
Update

Periodically over the next hour or so I went back to check the temp. Here is what I came up with...

1:50am (initial reading) 90 hot side, 80 cool side
2:05am: 80 hot side, forgot to check cool
2:20am: 78 hot, 75 cool
2:45am: 78 hot, 75 cool

So I think that actually I should be alright without any light on, I'll have to reassess this theory in the winter months. I live in Florida, but the winters can get into the 60s outside. And I've really decided that I have to go lightless at night. Every time I checked the temp I turned on my over head light in my room. Every time I turned the light on he was in a different spot and one time he was even drinking some water, which I had yet to actually see him do though evidence shown that he had (I saw little foot prints heading back to his hide one morning)

So I'm thinking about going back to a 12/12 cycle. When I wake up in the "morning" the temp will be a good indication of where I stand. I might have to set the timer to turn on for an hour in the night to jump start the heat just to make it to the morning.

I'll also look into a UTH.
 

Elizabeth Freer

Well-known member
You could invest in a min/max digital thermometer which automatically records the high temp and the low temp for any period. Then you can clear it to start over. You can also purchase ones which record the humidity as well.
 
Dimmer (they have dimmer cords that you can replace the lamps cord with), or a thermostat of some sort.

Each of these will help you get the temperatures you are looking for.

The thermostat is fully automatic and if set up properly will nail the temperature you aim for within a degree or two for the lower quality ones and nearly spot on for the better (way higher price) ones.

Dimmers are best in homes with very stable temperatures, they do require monitoring though, all bulbs produce their highest temperatures when new and fall off at different rates. It's much easier said than done to get the temps correct this way.

Maurice Pudlo
 

Riverside Reptiles

Administrator (HMFIC)
This is a good inexpensive one: BAH-1000SC Reptile Thermostat Has Been Redesigned Utilizing an IC Smart Chip For Controlling Cage Temperature

I personally suggest putting all heating devices on a thermostat. Dimmers are cheaper, but they won't save your animal if for some reason it over heats. The above thermostat will control up to three devices at a time. Also make sure that you're using a decent quality digital indoor/outdoor thermometer with a probe to monitor your temps. You should be able to pick one up for $10 or less at Walmart or Home Depot etc.
 

sajane

New member
an under tank heater is a good option because they digest their food with belly heat. You cant use it on the carpet though and you need a thermostat. you can get one for $26.99.not sure the brand. Also a good investment would be a temp gun that measures the temp of the ground. No other lighting would be required unless you enjoy night viewing and a 25 watt red party bulb would be fine for that.Get the uth that matches the size of your tank. Put it on 1 end under the bottom.Tape the thermostat probe over the top inside the tank and monitior the temp with the temp gun until its 92-95 degrees
 

MellowMan24

New member
i'm surprised no one mentioned this yet in this thread, your temps are suppose to be 90-95 on the warm side not 85
 

Cobb89

New member
Hey thanks for your help everyone. I went to my petsmart where a guy there who owns a leo was able to help me. (On a side note I'm pretty excited to have found an employee with personal experience with Leo's) He showed me a 75 watt blue light that emulates moon light to use at night. It's been getting to the temp range that I wanted, between 78 and 83ish depending on what I've got on in my room (computer, fan, tv, etc).

He said that in the winter it likely won't be hot enough just to use the blue light at night so I'm going to go back for a UTH in the winter months. I bought a piece of oak wood to go beneath the tank (my tank sits on carpet) so that I don't start a fire in the winter lol.
 

MellowMan24

New member
u should have read some of the responses! we just got done telling u 78-83 is not warm enough for the warm side! in needs to be 90-95! if you dont take our advise then dont come back in 2 weeks wondering why your leo is not eating!
 

Cobb89

New member
My day time temperatures reach that high, not my evening ones. So far he's been eating very well. He recognizes, generally, that when I open up the tank around 8pm that its time to eat. If it becomes a problem I'll go out and purchase the uth.
 
I'll go ahead and put my ding-a-ling on the chopping block.

These are the temps I use (all uth and measured on the slate surface);
Zone 1) 90°F day, 87°F night
Zone 2) 82°F day, 79°F night
Zone 3) 75°F day, 73°F night

Heat is on a 15/9 schedule with heat overlapping the light schedule by 3 hours in the evening only.

T-stats are Ranco ETC, one for each zone.

Lights are on a 12/12 schedule (no seasonal alteration).

This has worked for me over the years, I figure rocks and such take a while to cool down at night, and it does get pretty cold in the desert at night.

Any how, I've found my fire suit and will have it ready to go by the time the first fire ball hits, flame away :nana:

Maurice Pudlo
 
Top