J
jennifer
Guest
Here is a dramatic illustration of the fact that the temperature of water in an aquarium can be either higher or lower than the ambient air. There was a 6-degree F (about 3.5 degrees C) difference between the water in one tank versus the tub in the same room!
All three temperatures were measured with the same aquarium thermometer. I would like to repeat the measurements with a more accurate thermometer, if I can find one that works in both air and water.
Air temp = 71F (21.7C)
Tank temp = 74F (23.3C)
Tub temp = 68F (20.0C)
Here are photos of the tank and tub:
The relevant differences between the tank and tub:
glass lid versus open top
1 meter off the ground versus on the floor
canister filter versus air-driven filter
Moral of the story: if you really want a cool tank, put it on the floor, get a screen lid, and ditch the power filter!
All three temperatures were measured with the same aquarium thermometer. I would like to repeat the measurements with a more accurate thermometer, if I can find one that works in both air and water.
Air temp = 71F (21.7C)
Tank temp = 74F (23.3C)
Tub temp = 68F (20.0C)
Here are photos of the tank and tub:
The relevant differences between the tank and tub:
glass lid versus open top
1 meter off the ground versus on the floor
canister filter versus air-driven filter
Moral of the story: if you really want a cool tank, put it on the floor, get a screen lid, and ditch the power filter!