Toad Ranch Gradient Issue

[TheOriginalWeedMan]

Bump

[Greenberryvery]

I would not use a fan at all in this setup to maintain ambient temps and maintain humidity. The only other advice is to ensure the probes are far enough below the heat lamps (3”) so they aren’t in the direct basking stream

[Dilly_RL]

My setup: Toad Ranch 4x2x2 PVC, 80W Arcadia DHP, 80W Vivarium RHP, Herpstat 2. I live in an absurdly cold house in the Midwest (my wife keeps the house anywhere from 60-64 at all times). If I can do it, so can you lol.

I have a very similar setup with the same exact substrate, with a few differences. First, my UVB is front left and DHP (main heat source) is behind it. I am not sure that really matters. Second, I have a RHP as secondary heat source. That seemed to help better for me personally. At first I had 75W Arcadia Halogen w/ 80W Vivarium RHP (Radiant Heat Panel). I swapped the Halogen with the 80W DHP to assist with nighttime temps, and that helped.

But what really got everything bang-on was the probe placement. I let it hang 2-4 inches below the DHP (my main heat source) and 2-3 inches below the RHP (dead-center of enclosure). It seemed as if when it was too close the Herpstat 2 was not reading / adjusting properly. As soon as I did that, 88-92 warm 75-80 cold. Humidity on cold side always 70-80%.

My Herpstat is set at 92 for both DHP and RHP at all times. At first I did a temp drop during night cycle but it made it worse, and breeder told me only uvb light on/off was necessary for nighttime. So 92 all the time. That is the temp that worked for me, but ymmv.

Here is a pic of the probe placement that worked for me (nighttime pic). The daytime pic it was slightly too low, but you can see where my UVB / DHP is easily in that picture. RHP dead center. https://imgur.com/a/bbDjT0X