I don't use heaters in the fish room but the other tanks do have them.
which types of heaters do you use.
which types of heaters do you use.
Never tried the candle under the tank, but I once ran across a reference to a really old aquarium publication containing an article about "The evils of open-flame aquarium heaters."
I heat the room. Bottom tanks are mid 70s and the top are usually almost 80 in the winter and warmer in the summer. I use a space heater and somewhat customized my ducts to feed more heat into the room. I used to use heaters for my Discus but realized some time ago that healthy Discus do not need it. I have some Ebo Jagers around if I ever want to apply heat but haven't used any in years.
George