ColleoniDellAngelo.com is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Learn more

The Best External Filter For Aquarium in 2023 (Top Choices)

Carla Watts
  Jan 31, 2023 8:50 PM

Having an external filter for your aquarium is an important part of keeping your fish healthy and the water clean. With so many types of external filters on the market, it can be hard to know which one is best for your tank. From submersible to hang-on-back models, we’ll discuss the features to look out for in order to find the best external filter for your aquarium.


Buying guide

When it comes to selecting the best external filter for your aquarium, there are a few things you should look for to ensure you get the best product for your setup. Here are 5 key factors to consider when choosing an external filter for your aquarium. 

1. Flow Rate: The flow rate of the filter is an important factor to consider. You want a filter that can provide enough flow to keep your tank clean and healthy, while also ensuring that water is being kept in circulation. This can be measured in gallons per hour (gph). 

2. Filtration Capability: You also want to make sure that the filter you’re looking at has the proper filtration capabilities to match the size and type of your aquarium. This includes being able to filter out debris, chemical contaminants, and other contaminants that may be present in the water. 

3. Maintenance Requirements: Make sure you know how often you’ll need to clean the filter and replace the filter media. You want a filter that doesn’t require too much maintenance in order to keep it working properly. 

4. Cost: You also want to be sure to factor in the cost of the filter when making your decision. You want to get the best filter for your setup that also fits within your budget. 

5. Noise Level: Some filters can be quite loud, so you want to make sure you’re getting one that won’t be too loud for your tank.

Other guides:

Best Activity Table For 1 Year Old

Best Half Racks For Home Gym

Best Cpu Cooler For I7 12700K

Best Sander For Hardwood Floors

Best Bike Racks For Subaru Outback

Best Hand Soap For Dry Cracked Hands


Compare Products

1
  • SCORE
    9.2
    AI Score

    This score ranges from 0 to 10. And it is achieved by our expert analysis combined with real-time data from the product itself and how customers reviewed that product. There is no influence from any manufacturers in calculating this score.

  • Brand
    Fluval
2
  • SCORE
    8.8
    AI Score

    This score ranges from 0 to 10. And it is achieved by our expert analysis combined with real-time data from the product itself and how customers reviewed that product. There is no influence from any manufacturers in calculating this score.

  • Brand
    Tetra
3
  • SCORE
    8.8
    AI Score

    This score ranges from 0 to 10. And it is achieved by our expert analysis combined with real-time data from the product itself and how customers reviewed that product. There is no influence from any manufacturers in calculating this score.

  • Brand
    Penn-Plax
4
  • SCORE
    8.6
    AI Score

    This score ranges from 0 to 10. And it is achieved by our expert analysis combined with real-time data from the product itself and how customers reviewed that product. There is no influence from any manufacturers in calculating this score.

  • Brand
    OASE Indoor Aquatics
5
  • SCORE
    8.4
    AI Score

    This score ranges from 0 to 10. And it is achieved by our expert analysis combined with real-time data from the product itself and how customers reviewed that product. There is no influence from any manufacturers in calculating this score.

  • Brand
    OASE Indoor Aquatics
6
  • SCORE
    8.4
    AI Score

    This score ranges from 0 to 10. And it is achieved by our expert analysis combined with real-time data from the product itself and how customers reviewed that product. There is no influence from any manufacturers in calculating this score.

  • Brand
    SunSun
7
  • SCORE
    8.0
    AI Score

    This score ranges from 0 to 10. And it is achieved by our expert analysis combined with real-time data from the product itself and how customers reviewed that product. There is no influence from any manufacturers in calculating this score.

  • Brand
    OASE Indoor Aquatics
8
  • SCORE
    7.8
    AI Score

    This score ranges from 0 to 10. And it is achieved by our expert analysis combined with real-time data from the product itself and how customers reviewed that product. There is no influence from any manufacturers in calculating this score.

  • Brand
    AMOSIJOY
9
  • SCORE
    7.2
    AI Score

    This score ranges from 0 to 10. And it is achieved by our expert analysis combined with real-time data from the product itself and how customers reviewed that product. There is no influence from any manufacturers in calculating this score.

  • Brand
    Finnex
10
  • SCORE
    7.0
    AI Score

    This score ranges from 0 to 10. And it is achieved by our expert analysis combined with real-time data from the product itself and how customers reviewed that product. There is no influence from any manufacturers in calculating this score.

  • Brand
    FREESEA

Last update on 2023-01-31 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API


FAQs

Q: What is the best flow rate for an external filter?
A: The best flow rate for an external filter depends on the size and type of your aquarium. Generally, you want to get a filter that can provide at least 8 gph for a small tank and 10-12 gph for a larger tank. 

Q: How often should I change the filter media in my external filter?
A: Depending on the type of filter media you’re using, you should replace it every 3-6 months. Make sure to check the manufacturer’s instructions for more specific guidelines. 

Q: Do I need to buy a new external filter if I change the size of my aquarium?
A: If you change the size of your aquarium, you may need to get a new external filter. This is because the filter needs to have the right flow rate and filtration capabilities to match the size and type of your tank. 

Q: What is the most cost-effective option for an external filter?
A: The most cost-effective option for an external filter depends on the size and type of your aquarium. Generally, you can get a good quality filter without breaking the bank. Just be sure to read reviews and factor in the cost of filter media and other maintenance requirements when making your decision.

Q: Are all external filters loud?
A: Not all external filters are loud, but some can be. Be sure to read reviews and compare noise levels before making your decision.

Conclusion

Choosing the best external filter for your aquarium can be a daunting task, but if you take the time to consider the five factors listed above, you’ll be sure to find the best product for your setup. Be sure to read reviews, compare prices, and consider the filter’s noise level and maintenance requirements to find the best filter for your aquarium.


4.8
4 ratings