The only regular care required is to make sure that water droplets are not regularly deposited on the leaves, as this will cause decay. Water lettuce and Lily pads are examples of floating plants. Rooted plants, like tubers need to be anchored to the bottom of the tank. It is suggested that the roots be tied to pieces of rock or wood. The nitrates are collected and minimized by filters; however they will eventually accumulate in the tank. Regular water changes are required to remove the nitrates from the water. It is important to set up and run an aquarium before any fish are introduced into the environment. Wash the tank and any substrate and decorations thoroughly with water. You will need a heater for temperature control, and a thermometer for checking the water temperature. It will take approximately five bags of rock or other substrate to line the bottom of the tank. Choose a bright color to add some interest to the aquarium. In addition, you will need to purchase a filter for the tank. General Care for the Freshwater Aquarium Okay, so you have decided that you want to own an aquarium. It is a good idea to make out a wish list before purchasing any fish for the aquarium. Keeping an aquarium will require patience. Unfortunately, it is not realistic to go the pet store and just start picking out fish. The only things to be concerned about are if your filter causes too much disruption to the water surface. When this happens, carbon dioxide is lost and plants will suffer. Also make sure the filter creates a current that keeps nutrients moving throughout the tank. By having a good chemical balance in the aquarium and having an efficient filtering system, you will be sure to have healthy live plant growth. is somewhere between 8.3 and 8.4. Test kits can be purchased online or at your local pet store. They same store will also carry any solutions necessary to adjust the P. H. There is not much wiggle room when it comes to these specific staring points. In order to avoid a costly mistake it is important to be patient, watch the tank closely, and make sure that you don't introduce any marine life until the tank is absolutely ready.