I use a Rena-Cal Top Light Excel 300w heater in my 75 gallon FW community tank.Firefighter337 said:75 gallon tank.
Thanks for your input! I think I will start out with a single unit to help reduce the initial cost and then possibly add a second unit later. Was just thinking of having it set 1 or 2 degrees cooler than the first in case the one fails. I am one of those that tends to err on the side of caution and having a backup already in place will make me feel a bit better.jones57742 said:IMHO the two heater concept is good and is what I employ.
The only drawback to the two heater concept is that two thermostats are also employed which implies twice the probability of a thermostat sticking and overheating the aquarium.
It has been my experience that this probability is minimal compared to a heater failure.
I employ Pro Heat heaters and the following link provides information concerning wattage, temperature and tank capacity.
Please note that 78F is 26C.
The following link is a fahrenheit to celsius converter.
In wet/dry filtration the heaters and thermostats are typically placed in the sump.
If you have another type of filtration the heaters are typically placed remote from each other in the tank and vertically separated from the filtration intake.