Photosynthesis in water plants takes place in the same way as in terrestrial plants. Water, Light and Carbon dioxide help aquatic plants to photosynthesize and produce their own food. Given the perfect combination of these three…..the oxygen released in this process give the fish a rich content of dissolved oxygen content in water to breathe in. The oxygen released in this process give the fishes a rich content of oxygen dissolved in water.
When the water is no longer able to hold/dissolve more oxygen, small bubbles looking like pearls appear on the leaves. The beautiful pearls of oxygen bubbles are the outcome of this strong photosynthesis activity known as “PEARLING” which is the sign of healthy planted aquarium.