koisRus said:I would not use a aquarium heater for the fact the lowest temp setting is around 68 degrees, it would run all the time. If you insist on using one look at the Rena Smart Heaters, no glass, and I believe you can touch them when they are on without getting burned.
You can also cover your pond, I am going to build a hoop house over mine with 1-1/2" electrical pvc and cover it with 6 mil plastic.
it is true the lowest temperature on the aquarium heater from walmart was 65. I read that fancies should hibernate in cold water 55+F to spawn for the next season. Is there any particular website that you recomend to buy the Rena Smart Heater?
Thanks KoisRus