Long time fishkeeper here, but I am a bit old school. I have only used the old "reliable" hob
glass heaters. The one I have on my newest tank is driving me batty because it won't keep a constant heat. I tweak it constantly. It just won't hold a perfect temp steady.
So instead of buying another one of these I am wondering what else out there a) works well and b) is adjustable.
I have always tried to give my fishes the impression that they are in the wild. This means over the winter I gradually drop the temps and decrease the amount of light they receive. Not talking crazy here, of course. At the coldest we go down to is 72, maybe 70 depending on the fish I have. Warmest 82 at the peak of summer. But being this anal about my temps, this glass one just isn't cutting it.
Submersibles aren't EASILY adjustable, are they?