Just curious what the spectrum looks like. Early 2000's it was calcium reactors were the real "it" way of maintaining levels, late 2000's/early 2010's it seemed to shift.
I myself switched to automated 2-part dosing some time ago.
But to be honest I find myself missing the calcium reactor and not having to fuss with it for 6 to 12 months at a time. With the 2 part dosing I am constantly mixing the stuff and I just hate the job for all the mess it seems to make while I'm at it.. and only seems to last 2-3 weeks at best. I thought about getting larger reservoirs but that is only going to be messier I think.
So .. feel free to talk me out of going back to a CO2 based calcium reactor if you like, haha!

I'll listen to both sides of the argument if any are presented, but I'm also curious who's all out there and using what these days and what the breakdown is like. Answer what you're using, not what's your favourite. Ie., if you use both just answer with both. But feel free to post your thoughts on what's your favourite dosing mechanism.