Heater setup for larger tank
What is the best way to do heating for a large 180 gallon tank?
Single heater or multiple heaters?
If I get multiple heaters, do I want them to both be rated to handle the tank size alone, or do I want to get two underpowered heaters that work together to heat. I'm trying to design this in a way where a heater failure (either not working or staying on idenfinitely) will not be catastrophic.
Any other advice would be appreciated.
Lastly - any product recommendations? I have an eheim jager currently and I've been happy with it, but haven't researched others in depth.