Using Heater Controllers to Keep from Boiling Your Aquarium Fish - Should you? Yes or No?

Let's get into what some of you asked about after watching my last video ("More Efficient and Safer Aquarium Heating" here:    • More Efficient and Safer Aquarium Heating  ).
You asked about my use of a controller on my 150 gallon tank. In that tank I'm using a heavy duty controller from www.jehmco.com which is a provider of a vast array of aquarium and pond products.
Should you use a controller? For that matter, should you use a heaters at all? Let's talk about it here!
What are your thoughts? Comment below. I love to read your comments. Remember, we all learn from each other!
Heavy Duty Controller shown in video:
https://www.jehmco.com/html/temperatu...
Other two controllers shown are from Inkbird and available at Amazon and eBay.
Opening music clip:
Lazy Eye by Silversun Pickups.
Are you interested in filtration? Go here:    • Aquarium Sump Set-Up Basics  
For water change tips go here:    • Water Change, Maintaining the Best Water Q...  
Video about fish disease videos here:    • Aquarium Fish Disease - My Thoughts, Advic...  
Follow me on Instagram at: ben.o.cichlid.
Join a helpful group of fish keepers at the Ben O'Cichlid Facebook group page.
Don't forget to rate, sub and join the "Convo Gang" by hitting that bell to catch new uploads.
Most Saturdays come join me for a LIVE STREAM, "Cichlids and Coffee", at 11am Central time. Fish care, fish fun and your questions answered.
You're the BEST! And ... YOU ROCK!