Ranco if cost is absolutely no matter, the Cadillac of controllers for the hobby. I've personally used inkbird with great success and I just ordered a bayite from Amazon to try on a cube I'm setting up in my bedroom. The first two I will recommend whole heartedly. The last one, the jury is out, ask me about it in 6 months, lol.what do you recommend for a quality heater controller?
My larger aquarium I use a Apex classic controller, with dual temp probes to keep an eye on things.

