2/21/2023 0 Comments Are goldfish freshwater fish![]() This process can take as long as three months, even longer if the process is interrupted by water changes or chemicals. When an aquarium has a good nitrogen cycle working in it, the aquarium is said to be "cycled". If there aren't enough bacteria in the aquarium the levels of ammonia can rise to a point that fish can develop tissue and organ damage which can lead to poor growth, illness, and death. In order to understand how biological filtration works one should have a good understanding of the nitrogen cycle.Ī fish tank that has not been properly cycled can develop what is referred to as "New Tank Syndrome." Wastes, excess food, decomposing plants, etc all contribute to producing ammonia in an aquarium. The likely reason for the water getting cloudy and having the fish die is due to an improperly cycled tank. Earlier in this article, we asked the question "Have you ever tried to keep Goldfish in a bowl only to have the water go cloudy and have the Goldfish die?" ![]() Biological Filtrationīiological filtration in an aquarium refers to the process of using beneficial bacteria to break down waste to help make the water safer for fish. There are other types of chemical filtration available besides activated carbon.Ī relatively new product called Purigen, made by a company named Seachem, is marketed as a product that leaves your water crystal clear and can be recharged and reused. ![]() Most hobbyists recommend changing their activated carbon about once a month depending on the number and type of fish that are kept in the aquarium. ![]()
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