Just a few time ago it was revealed by the channel MyFishCare101, another great video “Elodea Releasing Bubbles”.
As pubished by MyFishCare101: “WATCH IN HD
Elodea releasing oxygen bubbles. Bright light increased photosynthesis activity, a chemical reaction where 6 carbon dioxide molecules and 6 water molecules interact to form 1 glucose molecule and 6 oxygen molecules:
6CO2 + 6H2O = C6H10O6 + 6O2
As oxygen is a waste product it is released into the environment, aerobic organisms.
As you can see here there is a steady rate of oxygen being released. Not seen here, other plants throughout the aquarium were also releasing bubbles.”
You can check the video below: