Dumb Question?

[Johnny Reefer]

"The heater(s) chosen should be sized at 2 to 3 watts per gallon...."
-The New Marine Aquarium by Michael Paletta. (page 38).

Cheers,

[G1GY]

Originally Posted by Beverly

I would get two heaters, probably 2 x 100w, instead of one large watt heater in case the large heater fails on the "on" position.

A small heater is more likely to get stuck in the on position IMO.

Trying to heat a large amount of water means that the small heater has to stay on longer, increasing the chances for the contacts in to be fused together. (Always in the on position)

Just my opinion though.