Some plants will thrive on the waste put out by the fish in the aquarium, while others will require regular fertilization. Again check with your supplier for compatibility and feeding requirements. When purchasing plants, make sure that they are true aquatic plants. Live plants should be pruned weekly. In addition, test the nitrite and ammonia levels before adding these additional fish. The ammonia levels should return to zero. This also takes about a month. There are a few basic tips that will keep fish healthy. Don't over feed the fish. Any excess food will become debris in the tank, and then turns into ammonia, which is toxic to fish. Do a lot a research to find out what type of filter is suggested for the fish that you choose. There are filters that go beneath the substrate in the bottom of the tank, as well as filters that attach to the side of the aquarium. They also vary greatly in price. It is not necessary to buy the most expensive filter when setting up a basic freshwater aquarium. Caring for Bubble Coral in an Aquarium As more and more people set up saltwater aquariums, more are also adding coral to the d cor. As with any living thing, it is best to understand the creature and how to care for it properly before bringing it home. Coral is no different as it is a live animal that you will be adding to your tank. When cleaning the tank, you will need remove of stir the gravel to remove sediment that could possibly change the chemical make up of the tank. Use caution when cleaning an acrylic tank and be sure that the cleaning supplies being used will not harm the tank in any way. The best thing to use to remove algae is phosphate drops. The most important factor in growing and maintaining healthy aquarium plants is the lighting used. For a well planted aquarium, it is suggested to use 2-3 watts per gallon of water. The use of fluorescent bulbs is practical and adds a nice lighting effect. Take caution when deciding to use florescent lights if your tank has a depth of 20" or more.