How to clean a freshwater fish tank

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    Victoria Smirnova

    Victoria Smirnova is a writer and editor who adores animals and helps readers get along well with their pets. While studying at the University, Victoria became interested in writing articles on different themes. Before The Pets, Viki headed several websites and worked as a news editor. Victoria has been working in digital media for more than 5 years and has great experience writing content about lifestyle, including pets.

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  • Updated on: 17/04/2020

how to clean a freshwater fish tank@fluky / FreePik

If you want your aquarium to have an attractive appearance, and the fish and plants were healthy, you need to take care of it. Although some fish are very good at cleaning the aquarium, a human must still take care of the aquarium themselves.

Having an aquarium with freshwater inhabitants at home is a responsible hobby. Many factors affect aquarium pollution: lighting, type of algae, frequency of feeding, number of aquarium inhabitants, presence of putrid bacteria, and more.

A dirty aquarium can threaten the health of fish and other inhabitants. Cleaning the aquarium is not limited to changing the water; it is also necessary to clean the decorations and walls of the aquarium. To do this as correctly as possible, read this article before cleaning.

Important: this method only applies to freshwater fish and freshwater aquariums.

cleaning freshwater aquarium@enadan / FreePik

First step: Preparation for cleaning

Before cleaning the aquarium, browse the specific literature or consult a pet store about how often you need to change the water in a freshwater aquarium. Aquarists’ opinions on this matter differ, so we advise you to find out several points of view and choose the most suitable for you.

Do not change all the water at once! As the water environment in the aquarium is formed by the fish and algae themselves, if you immediately change all the water you will endanger your fish.

Once every two weeks, you need to clean the aquarium, with all its decorations altogether. However, do not clean the aquarium more often, because during such cleaning you remove bacteria from it, which in small quantities support the life of the entire environment. To understand when to clean the aquarium, you can watch your fish; it may not be time yet, but the fish are covered in slime, their scales are dirty, and they swallow air, then it is worth cleaning the aquarium immediately. Fish watching will help you make your cleaning and water change schedule that is suitable for your aquarium.

Prepare everything you need for cleaning in advance so that you don’t lose time. Here is a sample list of things that you may need: nets, a temporary fish tank, freshwater, a clean brush, an algae cleaning pad, a siphon, a water conditioner, a unique tool for aquariums, clean rags and towels.

Prepare a place for cleaning the aquarium. Lay some waterproof cloth on the floor so that the floor is not covered with water. The main thing is that the aquarium should stand in one place, since when carrying fish, they will experience stress, and dirt will rise from the bottom, and the water will become muddy.

Turn off all electrical devices in the aquarium. However, please do not turn off the external lights, but place them behind the aquarium.

Second step: Cleaning the aquarium

Glass cleaning, do not rush to drain the water; it will help you clean the aquarium glass. To remove algae or dirt, you will need a clean cloth or sponge. You can not remove all the algae from the glass so that the fish can eat them, but you can clean them all, the opinions of professional aquarists differ.

After cleaning the glass, remove the rotten and yellowed leaves on the plants with scissors. If necessary, we do plant transplants. During these manipulations, the aquarium will become muddy. Wait five to ten minutes for it to settle, and carefully clean the leaves of plants from organic particles.

Move the fish to a temporary aquarium. Use water from the aquarium for a temporary place for fish so that the fish will experience less stress. Carefully check that the temporary water contains no soap or other chemical residues.

Catch your fish with a net. If you do not catch fish with one loss, you can use two nets, driving the fish with one net into the other. When you find your inhabitants, move them to a temporary aquarium. Cover it with a lid so that the fish do not jump out of it. You can not run the fish in ordinary tap water, only in water from the aquarium.

Remove all the decorations from your aquarium. Take out the decorations only when you clean the entire aquarium, if you just decided to change the water, then do not drag all the items out of it once again. You can not clean the scenery with soap, as it is very toxic to the inhabitants of the aquarium. It is better to take a clean brush or a special pad for algae and clean the decorations under running water at room temperature.

Pour the remaining old water from the aquarium into a large bucket prepared in advance. Be careful that there are no cleaning products in the bucket. If possible, do not use it for other purposes. Pass the gray water through the siphon when you pour it into the bucket.

Clean the aquarium gravel. A device for water “blowing” gravel can also be purchased for the siphon. This is a small solid tube, about five centimeters in diameter, which is attached to the siphon. A stream of water that comes out of the siphon washes the dirt from the gravel. This can be done while the water is being poured into the bucket from the aquarium. Gravel can also be washed separately, but it usually grows useful for the life of fish microorganisms. Therefore, it is better to use a siphon.

The final stage is wiping the outer glass of the aquarium. Shops sell individual cleaning products for aquarium glasses. It is also fashionable to wipe the aquarium wall with water-vinegar solutions in a ratio of 2 parts to 1. After washing, wipe the glass with a clean, dry towel.

Third step: Return aquarium contents

Return all the old clean decorations. If necessary, add more gravel or new decorations.

Before adding new tap water to the aquarium, please treat it with a special conditioner. Everyone knows that tap water contains a lot of impurities such as chlorine, ammonia, and heavy metal salts. This water will harm the fish, so water conditioners have been developed that purify the water from harmful substances.

Mix old and new treated water in the aquarium and measure its temperature. Control that the water remains the same temperature; otherwise, your fish will die. If necessary, dilute it with treated freshwater, or wait for the water to heat up and become room temperature if its temperature is lower or higher than the required level. Do not pour too much water into the aquarium; there must be space for air to saturate the water with oxygen.

Carefully place the fish back. To make the fish experience less shock, you can first put them in a plastic container with old water and put it in the aquarium; then, it will be easier for the fish to get used to slightly different water temperatures.

Recommendations:

  • Try to fill your aquarium with live plants, as they will help maintain the chemical balance in the aquarium, unlike plastic plants.
  • If you have a small aquarium, you should not put a lot of fish there, they will be crowded, and the water will always be dirty. Consult in the store or on the forums, how many fish will be comfortable in your aquarium.
  • For a natural cleaning of the tank, you can settle into its natural sweepers of shrimp or bottom fish. However, they will not totally save you from the need to clean the aquarium.
  • If you have purchased an aquarium filter, it is better to rinse it a week after cleansing the aquarium. At the same time, it is not necessary to clean them.


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