How to maintain water quality in fish tank?

There are several natural ways to maintain good water quality in your aquarium:

Regular water changes: The most important thing you can do is to perform regular partial water changes. This will help remove excess nutrients, debris, and waste products that can build up in the tank over time. Aim for changing 10-20% of the water once a week.

Gravel vacuuming: Use a gravel vacuum to clean the substrate of any uneaten food or fish waste that has settled on the bottom of the tank. This will help prevent the buildup of harmful chemicals.

Maintain proper filtration: Make sure your aquarium has a good filtration system that can handle the size of your tank and the number of fish you have. Clean or replace the filter media according to the manufacturer's recommendations.

Don't overfeed your fish: Overfeeding can lead to excess waste and uneaten food, which can pollute the water. Feed your fish small amounts of food 2-3 times a day and remove any uneaten food after 5-10 minutes.

Monitor water parameters: Use a water test kit to regularly monitor the pH, ammonia, nitrite, and nitrate levels in the water. Keep them within acceptable levels for your fish species.

If you suspect that the water quality in your aquarium is poor, the first thing you should do is test the water parameters using a water test kit. If the levels are outside the acceptable range, take immediate action to correct the problem. Some possible causes of poor water quality include overfeeding, overcrowding, inadequate filtration, and not performing regular water changes. Consider reducing the number of fish in the tank, adding more filtration, and increasing the frequency of water changes until the water quality improves.