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https://www.senzeal.com/blog/do-you-need-a-filter-for-a-fish-tank-b0485.html

Although the simple answer to this question is actually: No, you don't need to have a filter in your fish tank. If you have a fish tank, or you simply want to think of fish keeping as a common hobby, you might think, does your fish tank need a filter? Let us first understand that the filter as a tool can help your biological filtration in your tank. In other words, in most cases, you need to use a filter in your tank to achieve the purpose of biological filtration.
But this article will go a bit deeper so you can understand exactly what filters do and why most people recommend them, even if they are not necessary for tanks.
There are some things a filter can do for your tank:
1. The filter keeps the tank clean by removing debris and toxins such as ammonia and nitrates.
2. Filters can help water oxidation by creating surface agitation.
3. Filters provide a place for beneficial bacteria to grow it's important to know that all aquariums require some form of biological filtration, and filters are the easiest way to achieve this.
Biological filtration is 100% necessary in any aquarium to help reduce toxins and reduce the amount of maintenance required.
However, not all healthy fish tanks require the use of mechanical and chemical filtration.
A simple example: carbon or any other form of chemical filtration should only be used when needed. Another thing to consider when considering adding a filter is that some people (though not recommended) use small fish tanks, vases, and bowls to raise fish. In this case, due to their small size and a small amount of water, it is difficult to provide proper filtration, and in some cases, water needs to be changed more frequently every day.
Does the fish tank need a filter?
As mentioned earlier, filters are not necessary to maintain a healthy fish tank. Because what you really need is enough biological filtration in your aquarium. Biofiltration helps to recirculate the water tank, which basically means making sure that the water in your tank is safe enough for your fish to survive and thrive.
The filter decomposes waste (ammonia), converts it into nitrite, and then further converts it into safe and harmless nitrate, filtering out the harmful components of aquatic life in the water.
If you can provide the right amount of biological filtration without the use of a filter, then your fish should be safe.
So while a filter is not necessary for your fish tank, you could be limited to the amount and types of fish you will be able to keep.
Can Fish Survive Without a Water Filter?
There are many types of fish that can do well and survive without a filter.
Here are a few examples:
-Betta fish
-Goldfish.
-Wild-type Guppies.
-Regal White Cloud Minnows.
-Blind Cave Tetras.
-Corydoras.
-Zebra Danios.
However, all fish will do much MUCH better with proper biological filtration and surface agitation to oxygenate the water which is what a filter will do for your tank.
Do You Have To Clean A Fish Tank If It Has A Filter?
Even with a filter, it is recommended to clean your fish tank at least once every two weeks.
Depending on how heavily you stock your tank and the types of fish you are keeping you may need to clean more often.
You should do your best to clean the sides of your tank, to remove algae and use a gravel siphon to remove any built-up debris.
Finally, our goal as fish farmers is to provide a safe and healthy environment for our fish.
In order for the fish to grow up healthy, we must do our best to create a relaxed, healthy and safe living environment for them. Buying a filter is a good place to start. Filters keep water clean, free of toxins, help water oxidize, and provide the best place for the growth of beneficial bacteria.
As the fish tank shop, We have the best fish tank filter, best fish tank lights, best fish tank ornaments, best fish tank thermometer for sale, If you have any questions, please contact our aquarium expert now! Or you can go to the aquarium product category pages for more information about filters.