I with jda. For me, there's just no real benefit to a controller ... it's just a in shift tasks, such as setup a probe and/or device and read an app versus pull out a Salifert kit.
Not to mention the added anxiety fueled by the constant 'need' to check an app.
Other than the app to set my lights, and inkbird-type controllers for the heaters, I'd rather just do things manually ... which really isn't much effort or work.
I've also quite comfortably left my tank on analogue-auto-pilot (e.g. no controller) ... with the simple addition of a few Eheim auto-feeders ... for up to a month at a time on several occasions without any stress or troubling incidents.
Not to mention the added anxiety fueled by the constant 'need' to check an app.
Other than the app to set my lights, and inkbird-type controllers for the heaters, I'd rather just do things manually ... which really isn't much effort or work.
I've also quite comfortably left my tank on analogue-auto-pilot (e.g. no controller) ... with the simple addition of a few Eheim auto-feeders ... for up to a month at a time on several occasions without any stress or troubling incidents.