Adding an aquarium to your home can be a lovely idea as it provides a serene perspective of marine life. Routine cleaning is necessary, though, to maintain the health of your fish and the best-looking tank. Although it may initially seem overwhelming, cleaning an aquarium is not as difficult as it seems.
For your aquatic pets, you can maintain a healthy and clean environment with a few easy steps and the right tools. Knowing how to clean your aquarium correctly will make the process go more smoothly, regardless of experience level.
With the help of this guide, you will be able to maintain a clean aquarium and provide your fish with a safe and healthy home. You can find all the necessary supplies to keep your tank in excellent condition, from glass cleaning to water quality maintenance.
- General recommendations for cleaning the tank
- Instructions for cleaning the walls of an aquarium
- Scraper
- Kitchen sponges
- Magnetic scrapers
- Recommendations for cleaning the soil
- How to clean filters
- The procedure for cleaning algae and decorative elements
- Biological methods of cleaning the aquarium
- Video on the topic
- How and what to properly clean an aquarium at home
- How to clean an aquarium. Simple rules for crystal clear water.
- How to change the water in an aquarium correctly and easily.
General recommendations for cleaning the tank
Timely and appropriate maintenance can help maintain the aquarium’s cleanliness and aesthetic appeal while also giving the fish comfortable living quarters. When cleaning, pay attention to the state of the aquatic life, the outcomes of aquarium tests, and the surface’s appearance. Cleaning large containers should ideally be done twice a month, and cleaning small ones once a week.
If patches of plaque or clouds of dirt appear, do an emergency cleaning instead of waiting until the appointed day. Remember that changing the water in the tank alters the microclimate, and outside interference stresses the fish, so frequent cleanings also have a negative impact on the health of the aquarium’s residents.

Plaque develops on the tank walls due to the fish’s vital activity, too much food, and light. Tiny algae endanger the lives of the aquatic world’s inhabitants in addition to degrading its aesthetic appeal.
By using the following sequence of steps, you can clean a fish aquarium at home:
- Turn off the lights and electrical appliances except for external filters.
- Prepare the necessary attributes and clean water. Make sure your hands are clean and free of cream, lotion, other cosmetics or household chemicals.
- Remove plaque and algae from the walls of the tank.
- Wash the decorations and artificial algae.
- Clean live plants, trim, replant, weed them.
- Siphon the soil, drain some of the water.
- Wash the filter equipment.
- Install the decorations in place, fill with clean water, connect all electrical appliances.

Take care when cleaning the fish tank to avoid damaging the fish or upsetting the natural microenvironment.
Update the water on a regular basis to keep the atmosphere favorable. Every one to two weeks, a partial replacement (30%) is carried out. 50–70% of the water is renewed if the composition’s quality has noticeably declined. Pour in the same number of liters of liquid as you drained during preventive renewal.
Restart the aquarium in extreme circumstances (during an epidemic, during the growth of parasites). Give the aquarium’s inhabitants some time to acclimate after a general cleaning and before adding any more water. The system will need several days to recuperate.
Use a spring, settled, or filtered liquid that is at the right temperature in its place. Verify that the water is free of chlorine compounds before adding any more. Use specialized test strips to measure the water’s acidity, alkalinity, and other parameters.
Water specifically designed for marine aquariums must have the right amount of salt and other microelements.
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Use a siphon to remove some of the water from the tank during cleaning, then add fresh, settled, or filtered water in its place.
Instructions for cleaning the walls of an aquarium
Algal growth and the development of a green coating are common on aquarium glass. This frequently results in the glass becoming dull and dark, fish becoming less active, and their illnesses developing.
The following elements cause algae to grow actively:
- overfeeding fish with dry food. Particles of unclaimed food settle on the bottom, where the process of their decomposition begins, which contributes to the growth of unwanted algae;
- daylight hours over 12 hours or the use of too bright lighting;
- significant exposure to direct sunlight due to improper placement of the tank;
- overpopulation of an artificial reservoir.
To clean the walls, specialized equipment or homemade supplies are utilized.
Scraper
A metal scraper is a straightforward tool with a long handle and a blade. It is inexpensive, simple to use, and effective at eliminating plaque, algae, and other impurities. Though the sharp edges of the blade can scratch glass and harm sealant, which could cause a leak, aquarists hardly ever use such a cleaning tool.

The aquarium’s outer walls can be cleaned with the use of a window scraper with a rubber tip.
Kitchen sponges
A foam sponge is an easy and affordable aquarium cleaning tool. It works well for cleaning glass both inside and out, and the amount of pressure used determines how well the glass is cleaned and how good the outcome is.
To stop the growth of harmful bacteria, some sponges are pre-soaked in a unique solution. These sponges are not suitable for cleaning aquariums because they can damage the microbiota and kill aquatic life.
Magnetic scrapers
You can use magnetic scrapers or sponges to clean an aquarium. Benefits of this kind of tool:
- makes it possible to simultaneously clean the inner and outer surfaces of the wall;
- does not scratch the glass and does not damage the sealant;
- does not harm the aquarium inhabitants.
Nevertheless, heavy plaque cannot be removed by such a device, and the effectiveness of the cleaning is dependent on the magnet’s strength and the thickness of the glass. Furthermore, the process is fairly time-consuming.

Use a microfiber cloth to wipe the aquarium’s walls after cleaning them to get rid of any streaks and any possible leftover dirt.
Recommendations for cleaning the soil
Cleaning the aquarium’s soil on a regular basis is essential to maintaining a healthy microclimate because it collects dirt, algae, and leftover food. An aquarium siphon, which is a long hose with a tip and a bulb that functions as a pump, will assist in cleaning the substrate.
- removes dirt not only from the surface of the soil, but also from its thickness;
- turns over stones, which prevents them from silting up;
- helps remove plant humus, remove dead fish.

A siphon is a straightforward yet incredibly practical soil-cleaning instrument. It prevents silt build-up by turning over stones and removing small particles of dirt.
- Install the end with the tip into the soil.
- Direct the other end of the hose into the sewer or a container for collecting water.
- Press the bulb to start draining the liquid.
- Move the tip over the entire soil to thoroughly clean each area.
Small fish, crabs, and snails may enter the siphon while cleaning the bottom. Drain the water into a light bucket instead of the sewer if you want to catch this early.
How to clean filters
Filters are a crucial part of an aquarium because they remove debris, algae, and waste from the water. In order to preserve the ideal microclimate in the tank, the liquid is passed through a tiny foam sponge during the cleaning process. This sponge is home to colonies of helpful microorganisms.
Once a month, filters should be cleaned. When there is significant contamination—which is indicated by a weak outflowing liquid flow or murky water—an unplanned procedure is carried out.

The filter cleaning step of aquarium maintenance is required. Take caution when cleaning to prevent harming the filter system and destroying the colony of helpful microorganisms.
The process for filter system cleaning is as follows:
- Disconnect the device from the power supply and remove it from the container.
- Disassemble the filter to gain access to all parts. If the mechanism is complex, first read the instructions.
- Wash each element with warm water using a brush and baking soda. Rinse the foam insert with water from the aquarium so as not to wash away the colonies of beneficial microorganisms.
- Assemble the structure and check its operation.
- Install the filter in place and connect.
The procedure for cleaning algae and decorative elements
A variety of decorations, including shells, big stones, ships, houses, and artificial algae, are used to give the aquarium a distinctive appearance and provide cozy surroundings for its occupants. These things need to be cleaned on a regular basis because they are also covered in algae and fish life remnants.

Regularly removing damaged plant parts and weeding out live algae will help keep the tank in order.
The sequence for clearing the landscape:
- Remove objects that require cleaning from the tank.
- Rinse the products with warm running water.
- To remove plaque, use the old toothbrush and baking soda. It is important to wash all surfaces qualitatively, remove plaque and pollution.
- Rinse the scenery with clean water and set in the tank.
Using any kind of detergent to clean decorations is strictly prohibited. The tiniest chemical particle dropped into the water has the potential to poison aquarium inhabitants and cause their death.
Cleaning an aquarium at home entails routinely clearing the tank of waste, uneaten food, and debris to keep your fish in a healthy environment. It will be necessary for you to empty the gravel, clean the glass, and replace part of the water without causing the ecosystem any more damage. Regular maintenance keeps your fish happy and healthy and helps avoid algae buildup.
Biological methods of cleaning the aquarium
Add beneficial water inhabitants to the aquarium to help maintain a clean and conducive microclimate. Catfish are regarded as nature’s "orderlies" because they consume dead fish that aquarists neglected to remove, leftover food, and dead plant parts. They protect the ecosystem and provide other fish with a healthy habitat.
Gastropods will aid in the surface and water cleaning of the aquarium. Snails are extremely carefree and graze on fish waste, aquarium plants, algae, clean glass, decorations, and green plaque stones.

Bring in snails to help keep the aquarium clean. They will consume small algae and food scraps, keeping the tank from becoming contaminated.
Algae on the walls can be removed with the use of specialized cleaning tablets. All plants, however, are susceptible to dying if they are used incorrectly or frequently.
At home, you can clean the aquarium on your own. Use the cleaning algorithm and the given suggestions and guidance to accomplish this. The tank’s aesthetic appeal and the inhabitants’ well-being can be maintained with proper maintenance.
| Step | Description |
| 1. Turn off equipment | Unplug the heater, filter, and lights before cleaning to avoid accidents. |
| 2. Remove decorations | Take out any decorations or artificial plants to clean separately. |
| 3. Siphon the gravel | Use a gravel vacuum to remove debris from the substrate while keeping water levels steady. |
| 4. Clean the glass | Scrub the inside glass with an algae scraper or sponge to remove algae buildup. |
| 5. Change water | Replace 10-20% of the water with fresh, dechlorinated water. |
| 6. Clean the filter | Rinse the filter media in old tank water to maintain beneficial bacteria. |
| 7. Replace decorations | Place clean decorations and plants back into the aquarium. |
| 8. Restart equipment | Plug in the heater, filter, and lights, and ensure everything is working correctly. |
The wellbeing of your fish depends on maintaining a clean aquarium. Your aquatic pets benefit from routine maintenance, which includes clearing out debris, washing the glass, and monitoring the water’s quality.
With minimal effort, you can maintain the best possible condition for your aquarium by following a set routine and using the proper equipment. Recall that your fish and you will benefit from a cleaner tank.
You can have an easy-to-maintain, vibrant, and gorgeous aquarium by following these easy steps. Your fish will appreciate it!









