Quote:
Originally Posted by MadApocalypse
the bulb im using for my heating lamp is a 100w bulb
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WAY too much wattage for either of the tank sizes you've mentioned in other posts.
If you are using a 100watt bulb and a simple analog (dial) thermometer, you are WAY hotter than 90°F. Analog (dial) thermometers use a bimetallic strip that coiled and moves as it heats or cools. They are seriously inaccurate to a potentially lethal level for reptile keeping needs.
For comparison:
I use a 60 watt on a 20 gallon long for some young box turtles that puts the basking site to 90-95. In a pinch when I've had a power sun (mercury vapor bulb) die on my ackies or beardie, I've used a 75 watt GE reveal incandescent to bring my basking site on a 40 gallon up to and over 100°F. The PowerSuns are 100W and bring the immediate basking site into the 110-120°F range.
You should be at 40 (60watts max) for the standard screw-in type incandescent bulb. GE has reworked their reveal incandescent bulbs, and if I recall, what was 60w is now rated at 43w which should work.
For now I'd ditch using a bulb for cage heating if your room is at the ambient range you've mentioned. My herp room is of similar ambient heat, where my holdback/hatchling rack is the only rack without heat in the room. Temps are routinely in the low to mid 80s within the rack.