By goly it works! I just set it up in my main terrarium and it is working wonderfully! I am pleased with the system! Anyone who wants to try it do so! It is fizzing none stop! I am going to leave it on non stop. I used 2 9 oz. Plastic cups and proped one up on an upside down pot so it is above the baking soda filled cup. But anyone try it as it works!