WHY WE NEED TO AERATE PLANTED AQUARIUM DURING NIGHT TIME

As you know, aquatic plants perform photosynthesis using light and carbon
dioxide during the day while they respire at night by taking in oxygen and
releasing carbon dioxide. Particularly in a planted aquarium with a lot of stem
plants, the oxygen consumption by the plants during their respiration process
at night is high and this may cause lack of oxygen to the shrimps and fish.
In the case of an excessively low oxygen level, it can be observed that the
shrimps are inactive near the water surface. A lower dissolved oxygen level at
night also leads to an extremely low oxygen level within the filter, which
affects the beneficial bacteria in it. As a result, the balanced environment in
the tank will eventually be lost resulting in slightly cloudy water and
excessive algal growth. To avoid such a situation, it is advisable to perform
aeration during night for the planted aquarium.
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