File:Aquarium-NitrogenCycle.png


 * 1) Food is given to fish.
 * 2) Ammonia is given off.
 * 3) Bacteria converts it to Nitrite.
 * 4) Bacteria converts Nitrite to Nitrate.
 * 5) Water changes carried out to reduce levels of Nitrate.
 * 6) Sunlight enables plants to photosynthesis.
 * 7) Bacteria in the substrate breaks down Mulm.
 * 8) Plants give off Oxygen when lit.
 * 9) Plants absorb Carbon dioxide during the day to grow.
 * 10) Plants give off Carbon dioxide during the night.