Aquarium Filter Guide: Types, Tips, and Easy Improvement Tricks
Date Posted:9 August 2024


Having an aquarium filter is all well and good, but having the best one for the job is a whole other kettle of fish. When it comes to aquarium maintenance, you need to make sure your filter is the most appropriate type possible for both the tank and the fish themselves. If you’re not sure where to start, let us talk you through the ins and outs of fish tank filters. We’ll help you understand the different aquarium filter types, offer you tips for choosing the best aquarium filter, and provide easy improvement tricks to ensure your fish tank remains in top condition.
Aquarium Filter Types
Internal Filters
Internal filters are a great option. They are designed to be fully submerged within the aquarium, making them the ideal fish tank filters for small tanks. They are also easy to install and maintain—perfect for beginners. They work by drawing water through a sponge or other filtering media, trapping debris and promoting beneficial bacterial growth.
External Canister Filters
External canister filters are powerful and versatile, suitable for larger tanks. They sit outside the aquarium, connected by hoses that draw water out of the tank. The water is then filtered in the canister and returned to the tank clean. These filters offer excellent mechanical, chemical, and biological filtration, making them a top choice for enthusiasts who want the best aquarium filter performance.
Hang-On Fish Tank Filters
Hang-on fish tank filters are a popular choice due to their ease of use and effectiveness. These filters hang on the back of the aquarium, drawing water up and filtering it before releasing it back into the tank. They work well for various tank sizes and offer efficient filtration without taking up space inside the aquarium.
Air Sponge Filters
Air sponge filters are simple yet effective, particularly in smaller tanks or breeding setups. They use air bubbles to draw water through a sponge, providing mechanical and biological filtration. These filters are also gentle on delicate fish, making them a lovely option for specialised tanks.
UV Sterilisers for Aquariums
A UV steriliser for aquarium setups helps to control algae and eliminate harmful microorganisms. By passing water through a chamber exposed to ultraviolet light, these sterilisers lower the risk of disease and keep your water crystal clear.
Tips for Choosing the Best Aquarium Filter
Consider Your Tank Size & Stocking Levels
When selecting a filter, think about the size of your tank and the number of fish. Larger tanks or heavily stocked aquariums need more powerful filters to handle the increased waste production.
Prioritise Multi-Stage Filtration
We recommend a filter that offers mechanical, chemical, and biological filtration. Multi-stage filters ensure comprehensive water purification, maintaining optimal water quality for your fish.
Factor in Ease of Maintenance
It’s a good idea to select a filter that is easy to clean and maintain, especially if you’re a very busy person. Filters that are difficult to service can lead to reduced water quality over time.
Easy Improvement Tricks
Regular Cleaning
Maintain your aquarium filter by cleaning it regularly. Remove debris, replace or rinse the filter media, and check for any clogs or malfunctions. It is important to clean the impeller which rotates inside the filter's motor unit. Over time debris builds up around the magnets of the impeller causing it to reduce in performance. Consistent maintenance means stellar filter performance and water quality.
Upgrade Filter Media
Improve your filter’s efficiency by upgrading the filter media. High-quality filter media can improve mechanical, chemical, and biological filtration, providing a healthier environment for your fish.
Use Multilple Filters
For larger tanks or heavily stocked aquariums, consider using multiple filters. Combining different filter types, such as an external canister filter and an air sponge filter, can provide even better filtration and improve overall water quality.
Monitor Water Parameters
Regularly test your aquarium water to ensure the filter is maintaining appropriate water quality. You can use water test kits to monitor parameters such as ammonia, nitrite, nitrate, and pH, and then adjust your filter maintenance routine based on the test results.
Wet & Wild Water Filters for Aquariums
A well-chosen and properly maintained aquarium filter is vital for a healthy and vibrant fish tank. By understanding the different aquarium filter types and implementing our tips and tricks, you can ensure your aquatic environment remains pristine. If you need aquarium filters or filter accessories, consider the huge range available at Aquarium Kingdom. Our collection offers options for all kinds of fish tanks, and our friendly team is always happy to help you make the best choice. Browse (or swim) through our online store today and take the first step towards a healthier, happier aquarium!