The cylinder is filled with filtration materials, which can be for mechanical, biological and chemical filtration. This is the reason why the filter has to be placed out of the tank. You can’t use inner filters because they would be too small for the tank, or it would take up too much space in the tank. This is a very good filtration system for large tanks and in the marine aquarium, the external filtration is the only real alternative. Limiting the amount and size of the fish is not only good for their physical health, but also for their mental health.Īnd now I will write something about what kind of filtration of salt water tank you can choose: External Canister Filters Too many fish will result in more biological pollution, via waste products, than the filtration system can accommodate. You may use any type of filter, but if you have too many fish in your tank, the filtration can not be efficient. I should mention one very important thing. It is because they need the biological wastes for building up their bodies. Plants and algae filter the water, remove excrements, and destroy dangerous ammonia. Both of the green plants make the water stable and healthier. If you can’t get salt water plants, salt water algae is a very good alternative. The best thing for a healthy, balanced environment in your tank is health plants and algae growth. Actually we know how nitrification bacteria spread and why they exist, but this process is called nitrogen cycle and is explained on this website already. Don’t ask me how do they come to the tank, I do not know, but they are there and it is great. As with humans, living in a sterile environment can make you ill or hypersensitive. Low levels of bad bacteria stimulate the fishes immune system and make them more hardy and enhance their resistance to infections. This means that you must be very careful as in n small amounts even the bad bacteria are good. When you are sterilizing the water you are killing all the bacteria in the water, both the good and the bad. This method is mainly used in salt water aquariums. The last way of cleaning the water is sterilization or purification filters. The "good" bacteria convert toxic materials into a less dangerous form, which can be utilized by plant life, enhancing growth. They need lot of air so you have to ensure that the tank is adequately aerated. They can also live in mechanical filters. This system is based on bacteria which live in the tank, in the water, on the rocks and in the bottom substrate. These are more commonly used in salt water tanks. There are also biological filtration systems. ![]() These operate using materials which can absorb, or hold certain chemical substances, thereby removing them from the water. There are also chemical filtration systems. ![]() ![]() This type of filtration can clean the water of fish excrements and uneaten food. The water is passed through a filtration material like foam, gravel, sand etc. The most common in the freshwater aquarium is the mechanical filter. Marine aquarium filters vary in how they function. In the tank we need to ensure the healthy balance between the good and bad elements of the water. The toxic materials in the sea are at low levels because of the expansive amount of water. The aquarium at home needs adequate filtration to reduce the toxic waste materials. Of course we can’t ignore the fact that the home salt water tank is tiny compared to the large mass of oceans and seas. This is the cycle which we have to understand if we want to speak about filtration. The sea is not always the cleanest, even if it is not full of wastes, but it does have it’s own balance.īacteria feeds on fish excrements, plankton eat the bacteria, fish feed on the plankton and larger fish eat the smaller fish. On the reefs, where the tropical salt water fish live, the water is very clean.That is the major reason why many coral reefs are disappearing, primarily the contamination of the seas with human wastes. In a salt water aquarium it is very important to have clean, healthy water.
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