How can this be? For the most part, oceans have such a vast amount of water that the nitrate levels are probably insignificant. There’s no one performing water changes on large bodies of water like oceans, lakes, and rivers, yet fish are still able to live in them. By doing this, you’re replacing half of the “dirty” water with clean water. For example, if your aquarium reaches 40ppm of nitrates, you can do a 50% water change to get it down to 20ppm. The reason we do water changes is to remove some of the nitrates out of the aquarium. A large buildup of nitrates can cause the fish to get stressed, and if high enough, can kill them. Nitrates are tolerable to fish and shrimp in low amounts. Bacteria (known as “beneficial bacteria”) living on/in the filter media, substrate, and any other surface in the aquarium, will convert ammonia into nitrites and then eventually nitrates. Ammonia is toxic and will kill the livestock in the tank. To try to put it simply, fish waste and other decomposing organic matters like decaying plants or uneaten fish food will release ammonia into the water. Probably one of the most important topics to learn in the aquarium hobby is the nitrogen cycle. So what if there was a way to reduce the amount/frequency we water change to possibly never having to do it at all? That is the topic we will be discussing in this blog post!īefore we dive into the “how”, we need to first understand some principles of aquatic life. Having to drain and fill many aquariums every week can take up more time than we would like. ![]() Especially those that have multiple planted fish tanks. ![]() While some find tank maintenance therapeutic, others may see it as a hassle. If you could change one thing about the aquarium hobby, what would it be? A common answer might be: the need to do water changes. Written by: Tammy ( ) and Team Buce Plant
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