Yeast and light
This might be a stupid question but I mixed up a bottle for DIY CO2 a few days ago, same way as I always do and it's not producing no longer. So time for the maybe stupid question, does the yeast need light to produce CO2? I had this bottle in a dark area and thats the only reason I can figure that it quit so soon, all my other bottles last/lasted 3+ weeks.
“A wise man can learn more from a foolish question than a fool can learn from a wise answer.”
―A Bruce Lee saying