Sorry I don't live in VA but I think I can give you some guidance...you want to place the probe were the snake is. Since your snake is on the substrate you want the probe down around the substrate. In a tank you can either hang it so it floats an inch or so above the ground or a better idea is to stick it to the warm side hide so the snake cannot move it and the probe is located where your snake will spend most of its time.Originally Posted by alilshadee
Once you have it set then adjust your temps accordingly. Also, keep in mind 20g are tall so your red light heat won't penetrate far...I would suggest you change to a ceramic heater to get better heat penetration.
Hope this helps.