D I S S O L V E D
O X Y G E NJust like us,
fish need gaseous oxygen to survive. Every living organism in your
tank will compete with each other for dissolved oxygen. So you need to be sure there is enough to go around.
How do
I increase the amount of dissolved oxygen in my aquarium?
Any aeration or filtration system will
increase the amount of dissolved oxygen in the water. Surface movement
is vital to keep your oxygen levels high. So will regular
water changes with a gravel cleaner.
Will
live plants increase the oxygen in my aquarium?
Healthy plants give off oxygen during
photosynthesis. However, photosynthesis occurs only when there is
enough light in the aquarium. When there is no light in the aquarium
plants use up oxygen during respiration. Because of this, you should
not depend on plants as your only oxygen source.
A properly maintained aquarium, that is
not overcrowded, will probably never lack enough oxygen.