This is my homemade CO2 supply for my indoor grow tent
Made for under $5!!! In like 15 min pretty chuffed with myself when I started to see little bubbles every few seconds. I have the tubing running into the back of my fan to spread the love
Find some fast burning distillers yeast. You will have bubbles popping non stop. You will eat the sugar up twice as fast and use twice as much but try it out