These nutrients include nitrates, sulfates and phosphates. Macro nutrients should never need to be added to the water of the tank. They exist on their own. Micro nutrients are needed in very small amounts. Copper, iron and zinc are among the micro nutrients live plants will need to survive in the aquarium. Try to remove any loose or floating debris at this time. When adding the new water to the aquarium, be sure that it is within approximately two degrees of the tank water. The sides of the aquarium should be scrubbed regularly to remove an algae build up. Again be careful not to disturb the fish. Wash your hands thoroughly before and after handling the aquarium. Filters collect waste excreted by the fish and left in the tank in the form of excessive fool. The filters will eventually fill with debris and be unable to do their job unless they are cleaned. In addition to eliminating waste, filter sometimes act as an aeration device cycling oxygen through the tank. Monthly Cleaning Routine Finally, some monthly steps will assure that your aquarium stays clean and healthy. A partial water change should be performed each month. Using a siphon hose, remove 20 to 25 percent of the water from the tank. Always make sure that your chemical balance is correct. High levels of chlorine and ammonia will cause death. There are many varieties of freshwater plants that would work nicely in a fifty five gallon aquarium. Just be sure to purchase an aquatic specific species. If you don't want the hassle of live plants, plastic is always an option. They have come along way with synthetic plants. In most cases the fish may not even notice the difference, unless of course they try to eat them. How to Care for and Clean a Saltwater Aquarium Most people are unaware or uninformed of how to properly clean and care for a saltwater tank. It's best to understand how to care for your saltwater tank before even buying one so as to avoid possible problems down the road. The first thing you should be aware of is that you will need to buy filtered water or buy a reverse osmosis kit.