This is ”Mad King Breadward the First”... he’s an upscaled Quarantiny starter.
I’ve taken care of several sourdough starters in professional bakeries (some 25+ years old) but never started my own, he’s the first I’ve started from scratch. I started it after finding @Wordloaf on Instagram, who started the Quarantiny starter movement since yeast is scarce these days, he’s worth looking up. He’s a chef and a writer for Cooks Illustrated (If my memory serves). I’ve learned a few things in the process and used a trick that I learned from a Chef at New England Culinary Institute 20+ years ago that helped me kick start him into existence.
Like others have said room temperature is enough, too warm and you are actually helping bacteria to grow. My house is 70F and Breadward lives on the counter (for now). He will eventually be moved to the fridge where he will live and require less work.
The trick I learned to ”jump start” the starter many years ago is that you can add a crushed grape skin to the starter and the natural yeast present on the skin will get you going. I didn’t have any grapes at the time of starting Breadward so I used a single raisin, figuring that the yeast would have survived the drying process, and lo and behold it worked like magic.
So in this experiment I’ve also learned you really want the dough you refresh the starter with between the consistency of wet bread dough and muffin batter. If it is too wet it won’t hold it’s structure and you won’t be able to tell when it’s doubled and it’s ok to refresh the starter again.
Another thing to consider is how much of the previous starter you add to the mixture to refresh the starter with. More is not always better, by adding more of the original starter you are actually increasing the byproducts that slow the growth of the culture and also introducing more of the bacteria that may be competing with the yeast if it’s struggling.
It’s going to stink at some point, you just need to keep refreshing the starter, It’s going to go from that nice yeasty smell, to althletes’ foot, stinky locker room funk smell, as long as you aren’t keeping it in too warm of a location 80+F then it will disappear and become it’s own smell. You have to remember there’s an evolution of different yeasts occuring in the starter and as their population densities change you’ll get different smells, some of which may not be pleasant, but it will get less funky as time goes on and develop it’s own character. The longer the starter survives the more unique and mature it becomes, it will take on it’s own identity (hence why we name them). (The older it gets the better it will be)
Always save your discard from the previous feeding incase your‘s crashes, you can use it to start over. Keep it in the fridge.
After your starter becomes active and mature enough you can save all the discard and use it to make things like Flap Jacks, Waffles, Crumpets, and English muffins.
Here are some discard Crumpets, they turned out pretty good!
Hopefully some of this will help you on your way!