Experts Tips to Maintain a Freshwater Aquarium: A Guide

Maintaining a freshwater aquarium can be a rewarding and relaxing hobby, but it requires consistent effort and attention to keep the environment healthy and thriving for your fish and other aquatic life. Proper maintenance involves regular water changes, monitoring water chemistry, cleaning equipment, and providing appropriate nutrition and care for your aquatic pets. 

In this guide, we will provide tips and guidelines on how to maintain a freshwater aquarium, from setting up the tank to keeping it clean and healthy over time. Whether you are a beginner or an experienced aquarium enthusiast, these tips will help you create a beautiful and thriving aquatic ecosystem in your home.

Changing the Aquarium's Water

Regular water changes are essential for maintaining a healthy aquarium environment. The frequency and amount of water changes will depend on the size of your tank, the number of fish and other aquatic life, and the quality of your water. As a general guideline, aim to change 10-20% of your aquarium’s water every two weeks. 

For heavily stocked tanks, you may need to change more water more frequently. It is important to test your water regularly to ensure that the chemical balance is within the appropriate range for your fish and other aquatic life. If you notice any signs of poor water quality, such as cloudiness, odor, or high levels of ammonia or nitrite, you may need to change more water more frequently or take other measures to improve the water quality.

Aquarium Maintenance Schedule

In addition to regular water changes, several other tasks should be included in your aquarium maintenance schedule. Here is a suggested maintenance schedule:


- Check the temperature of the water and ensure that it is within the appropriate range for your fish and other aquatic life.

- Feed your fish and remove any uneaten food.

- Observe your fish for any signs of illness or distress.


- Test the water quality using a water test kit and make any necessary adjustments to the chemical balance.

- Clean the aquarium glass with an aquarium-safe cleaner or scraper.

- Vacuum the substrate to remove any uneaten food, fish waste, and debris.

- Check the filter to ensure that it is functioning properly and clean or replace any filter media as needed.


- Clean the aquarium decorations and plants with an aquarium-safe brush or sponge.

- Check the aquarium equipment, such as the heater and air pump, to ensure that they are functioning properly.

- Trim any overgrown plants or replace any dead ones.

Cleaning Your Fish Tank

The Equipment

- Gravel vacuum or siphon

- Bucket

- Algae scraper or pad

- Aquarium-safe brush or sponge

- Water conditioner

- Towels or cloths

Steps to Clean a Fish Tank

  1. Turn off all aquarium equipment, including the heater and filter.
  1. Use the gravel vacuum or siphon to remove 25-30% of the aquarium water. This will also remove any debris or uneaten food from the substrate.
  1. Use the algae scraper or pad to clean the inside glass surfaces of the aquarium.
  1. Clean the aquarium decorations and plants with an aquarium-safe brush or sponge, removing any algae or debris.
  1. Use the bucket to remove the dirty water from the aquarium.
  1. Refill the aquarium with clean, conditioned water. The temperature of the water should match the temperature of the aquarium.
  1. Turn on the aquarium equipment and let it run for at least 30 minutes before adding fish or other aquatic animals back into the tank.

Remember to clean your fish tank regularly to maintain a healthy and clean environment for your fish.


Maintaining a freshwater aquarium requires dedication and commitment. It is essential to keep the water clean and ensure that the temperature, lighting, and filtration systems are functioning correctly. A regular maintenance schedule must be followed to ensure a healthy environment for the fish and plants. It is also crucial to monitor the behavior of the fish and make adjustments to their diet and environment as necessary. By following these guidelines, aquarium hobbyists can enjoy their freshwater aquariums for years to come, creating a beautiful and serene underwater environment for both themselves and their aquatic pets.

If you are looking for high-quality aquarium accessories, come and shop at Splashy Fish. We are proud to provide you with the highest quality, the most sustainable live freshwater fish, freshwater shrimp, aquatic plants, and premium fish food, the highest quality aquarium supply, and fish supplies to keep your friends healthy.