10 Best Filters For 36 Gallon Fish Tanks [2025]
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Finding the best filters for 36 gallon fish tanks can be a challenging task, especially with the overwhelming number of options available on the market. To help you navigate this process, we meticulously shortlisted 10 top-performing products based on factors such as filtration efficiency, ease of use, and customer reviews. Our curated list is designed to save you time and hassle, ensuring you select the perfect filter to maintain a healthy and vibrant aquatic environment for your fish.
Top 10 Filters For 36 Gallon Fish Tanks In The Market
Filters For 36 Gallon Fish Tanks Review
- REPLACEMENT CARBON FILTER: Keeps aquarium water crystal clear â removes odors and discoloration.
- CATCHES DEBRIS: Dense, dual-sided mesh filters debris and fish waste.
- FITS TETRA WHISPER WATER FILTERS: Color coded to make it simple to remember which replacement cartridge size to purchase.
- CONVENIENT: Replacement filter cartridges are fully assembled and ready to use.
- USAGE: Change monthly or sooner if needed.
- WHISPER QUIET The Tetra Whisper EX Power Filter provides silent multi-stage filtration for clear clean water .SIZE This filter fits 45 to 70 gallon aquariums - 240 GPH
- FAST SETUP Sets up easily right out of the box â no priming required
- CONTINUOUS FLOW Moves water continuously to prevent debris buildup
- NO-MESS FILTER CARTRIDGE CHANGES Design minimizes dripping to make cartridge changes easy
- SIZE This filter fits 45 to 70 gallon aquariums - 240 GPH
- QUIET & RELIABLE The Tetra Whisper Power Filter uses 3-stage filtration to create clear clean water â PF 40 treats aquariums up to 40 gallons
- ABSORBS ODORS Ultra-Activated carbon removes both odor and water discoloration
- CATCHES DEBRIS Dense dual-sided mesh filters debris and fish waste
- INNOVATIVE CLEANING POWER Integrated Stay Clean technology reduces buildup on glass and binds small dirt particles to make them easier to filter
- CARTRIDGE REFILLS Change cartridges monthly uses large-sized Tetra Whisper Bio-Bag Cartridges (refills sold separately)
- đ 25% MORE ACTIVATED CARBON - Aqueon Replacement Filter Cartridges are dual-sided, featuring dense-floss with over 25% more activated carbon than the leading brands.
- đ HIGH-QUALITY ACTIVATED CARBON - The cartridge contains high-quality activated carbon that keeps water clean.
- đ EVEN CARBON DISTRIBUTION - Aqueonâs patented cartridges were designed to ensure the even distribution of activated carbon.
- đ EASY INSTALLATION - Simply rinse under cold water and easily install using the "FRONT" orientation tab.
- đ MULTIPLE SIZES AVAILABLE - Aqueon Replacement Cartridges are available in X-Small, Small, Medium, and Large.
- PERFORMANCE â Max. Flow 225GPH (850L/H), Max lift 4ft (1.2m), Power 8.2W. This fish filter is ideal for fish tank size of 40-70 gallons(Choose the right filter for your tank). A filter canât cover tanks of big differences in capacity (as claimed by some products online)! Follow our recommendations for your tank.
- SAFETY â The aquarium filter is fully submersible with epoxy sealed motor. Each fish tank filter has been submerged in water and tested with super high voltage to ensure the safety.
- 3-STAGE FILTRATION â 3 sponge blocks â coarse sponge, carbonized sponge and fine sponge provide 3-stage filtration. COARSE SPONGE filters out large size impurities such as food residue, fish excrements, plant leaves etc.; CARBONIZED SPONGE removes odor, chlorine and fine particles; FINE SPONGE polishes water before it goes back to tank. PLUS the transparent box makes it easy to check the filtering material when they get dirty. Search code âB09W23YJD7â for the replacement sponges.
- AERATING WATER - Oxygenation is very important to your fish. Different from most of the filters in the market, this turtle tank filter also provides an air venturi and air tubing to increase oxygen supply in your fish tank.
- KIND REMINDER â If your tank is very large, choose 2 filters! Place a filter at both the left and right corners at the back side. You will get full filtration and great water circulation in your tank! PLUS this filter is with dual water outlet to ensure even water distribution in your fish tank!
- Slim and compact design, hardly noticeable on the tank, great choice for nano and pico tanks up to 5 gallons.
- Quiet operation with adjustable flow, doesn't overly disturb the fauna, perfect for shrimp or betta.
- Patent pending priming system, auto restart if power is interrupted and restored.
- Comes with everything you need right out of the box for easy setup and use.
- What's included: Filter body, intake tube, extension tube, intake sponge, and filter cartridge.
- Powerful Water Circulation: With a flow rate of 450 GPH and a max lift of 5.2 ft, this filter is ideal for 50â150 gallon tanks. It circulates water efficiently 4â6 times per hour, helping maintain optimal water conditions and a healthy habitat for your fish
- Advanced Filtration Design: This 150 gallon aquarium filter keeps tank water visibly cleaner. Its bio-sponge effectively captures debris and waste, enhancing water clarity and minimizing the need for frequent water changes. Washable and reusable for convenience
- All-in-One System: The 75 gallon fish tank filters combines filtration, aeration, water circulation, and wave flow into one unit. Perfect for creating a more natural aquatic environment in freshwater and saltwater setupsâideal for fish tanks, turtle habitats, and standard aquariums
- Ultra-Quiet Operation: Designed with low-noise technology, this Internel aquarium filter runs quietly under 30 dB. Enjoy peaceful moments with your fish while the gentle water flow adds a calming ambiance to your space
- Multiple Size Choices: Available in different model options to suit tanks of various sizes. This versatile filter is a great fit for small fish tanks, turtle enclosures, standard aquariums, and even small ponds
- ăMulti-filtration functionsăthis sponge aquarium filter combines bio-filtration, oxygenation and physical filtration in 1 and also makes small water flow, which can ensure the excellence of the water quality. Helps your small fish or shrimp to live a happy, healthy life
- ăFilter Demensionăplus the sponge filter with media balls takes up no more room. Small filter is 6" in width and 9" to 13." in height, the sponge inside circle diameter is 0.39 inch, suggest for 10 to 40 gallon fish tank. Medium filter is 6.3" in width and 9' to 13 in height, the sponge inside circle diameter is 0.59 inch, suggest for 15 to 55 gallon fish tank. For larger tank you may need 2 of this filter
- ăPackage Includesă1 double sponge filter with 2 containers +1 bag of ceramic media balls + 2 pare sponges(packed in the 2 containers). This aquarium filter must be used with an air pupm and a standard size 4mm air hose, please note pump and air hose are not included. Please choose a powerful enough air pump according to your fish tank size for this filter
- ăDetachable Fine Sponges ăyou can easy to take down the 2 sponges from the filter to clean or replace it, the 2 sponges are fine 60ppi not coarse, which means more surface area for beneficial little creatures to live on. Don't use tap water to clean it, just rinse or squeeze the sponges by using the aquarium water
- ăEasy to useăall the parts of this filter are detachable, you can easily to assemble them together, with 2 strong suction cups you can stick the filter firmly to any tank position under water, withouting floating. The water oulet tube can be extended and rotated, you can adjust the outlet to above or below the waterline
- WITH ROTATING BIO-WHEEL: Patented Bio-Wheel technology provides excellent wet/dry biological filtration.
- MULTI-STAGE FILTRATION: Delivers mechanical, chemical and biological aquarium filtration to maintain a clean aquatic environment.
- MARINELAND FILTRATION PRODUCTS: Count on Marineland brand for the most reliable, technically advanced aquariums and accessories on the market.
- COMPATIBILITY: Use with Marineland Rite-Size Filter Cartridges (see individual filter for sizing recommendations).
- FIVE SIZES: Available in 75 GPH, 100 GPH, 150 GPH, 200 GPH and 350 GPH sizes.
- Fully Compatible with URUQ: Aquarium filter cartridge measures 5.7 inches in length and 2 inches in width, making it fully compatible with the URUQ 2gal aquarium starter kits. Ensures a clean water environment, promoting the healthy growth of your fish and aquatic pets
- Affordable Long-Term Filtration Maintenance: This pack includes 10 filter cottons and 5 physical filter modules. For optimal performance, we recommend replacing the filter cotton every 1-2 weeks and the physical filter modules every 2-3 weeks
- Efficient Permeable Filter Cotton: The thickened white sponge pad uses bionic cashmere fiber technology to filter large impurities and feces, while the fiber cotton absorbs smaller impurities and odors, ensuring clear water. The soft sponge design also allows for excellent water permeability
- Superior Filtration Efficiency: Physical filter modules are crafted from non-woven fabric, activated carbon, and zeolite, effectively removes and absorbs 99% of impurities and odors. The physical filter module must be fully wetted before use to ensure proper water flow through and prevent overflow
- Effortless Installation: Simply remove the used cartridge, and put new into the filter chamber. Proper filtration is essential for a healthy environment for your fish and aquatic pets. Regular replacements ensure your aquarium stays in top condition
Our Review Process
To ensure you get reliable product recommendations, we follow a detailed review methodology that includes:
- Market Research: Scanning best-selling and trending products in this category.
- User Feedback: Reviewing customer reviews, star ratings, and complaints.
- Hands-On Testing: Trying select products ourselves when feasible.
- Feature Comparison: Evaluating specs, durability, pricing, and safety.
- Expert Opinions: Consulting with niche experts or credible reviewers.
We independently select the top 10 options based on value, quality, and usability. To learn more, visit our detailed review process.
Key Considerations for Buying Filters for 36 Gallon Fish Tanks
1. Type of Filter
When selecting a filter for your 36-gallon fish tank, it’s essential to understand the different types available. The most common are:
- Hang-on-back (HOB) Filters: Easy to install and maintain, HOB filters are ideal for many aquarium setups.
- Cannister Filters: These provide excellent filtration for larger tanks and can handle a higher bioload.
- Internal Filters: Suitable for smaller tanks or for use as additional filtration in larger systems.
- Sponge Filters: Great for breeding tanks or for tanks with delicate fish, offering gentle water movement and filtration.
2. Flow Rate
The flow rate of a filter is crucial to ensure adequate water movement and oxygenation in the tank. For a 36-gallon tank, look for filters with a flow rate that can efficiently process at least 3 to 5 times the tank volume per hour. Ideally, the filter should provide a flow rate between 100 to 180 gallons per hour (GPH).
3. Filtration System
Consider the filtration system that the filter offers, which typically includes mechanical, biological, and chemical filtration:
- Mechanical Filtration: This removes debris and particulate matter from the water.
- Biological Filtration: Essential for maintaining a healthy aquarium, this process breaks down harmful ammonia and nitrites through beneficial bacteria.
- Chemical Filtration: Involves using activated carbon or other media to remove impurities and toxins from the water.
4. Noise Level
Noise can be a significant factor, especially if the tank is located in a living space. Look for filters that are known for their quiet operation to ensure a peaceful environment. Check customer reviews and product specifications for noise ratings.
5. Maintenance Requirements
Different filters have varying maintenance needs. Some require frequent cleaning and media replacement, while others are more self-sustaining. Consider how much time youâre willing to invest in maintaining the filter and choose one that fits your lifestyle.
6. Size and Design
The size of the filter should fit well with your 36-gallon tank without overcrowding it. Consider the dimensions and design of the filter to ensure it complements the aesthetics of your tank setup. Additionally, check how the filter will be positioned and if it requires any additional space for maintenance.
7. Price and Budget
Finally, set a budget before you start shopping. Filters come in a wide range of prices, and while it might be tempting to opt for the cheapest option, investing a little more in a high-quality filter can save you money and trouble in the long run. Consider the long-term costs, such as replacement media and energy efficiency, when evaluating the price.
FAQs
What size filter do I need for a 36-gallon fish tank?
For a 36-gallon fish tank, it’s generally recommended to use a filter rated for at least 200-300 gallons per hour (GPH) to ensure proper water circulation and filtration. Look for filters that provide mechanical, chemical, and biological filtration for optimal water quality.
Can I use a hang-on-back filter for my 36-gallon tank?
Yes, hang-on-back (HOB) filters are a great option for a 36-gallon fish tank. They are easy to install and maintain, and they provide effective filtration. Just make sure to choose a model that is appropriate for the tank size.
How often should I change the filter media in my tank?
Filter media should typically be rinsed or replaced every 4-6 weeks, depending on the type of media and the bioload in your tank. It’s important to not replace all the media at once, as this can disrupt the beneficial bacteria that help keep the tank’s ecosystem balanced.
Are canister filters suitable for a 36-gallon tank?
Yes, canister filters can be suitable for a 36-gallon fish tank. They offer efficient filtration and can handle larger volumes of water, making them ideal for aquariums with more fish or plants. Just ensure that you select a canister filter that has a flow rate suitable for your tank size.
What type of filter is best for a heavily planted 36-gallon aquarium?
For a heavily planted aquarium, a canister filter or a sponge filter is often recommended. Canister filters provide excellent filtration and can accommodate additional media for biological filtration, while sponge filters offer gentle filtration that is beneficial for both plants and fish.
Is it necessary to have a filtration system for my fish tank?
Yes, a filtration system is essential for maintaining the health of your fish tank. Filters help remove waste, uneaten food, and harmful chemicals, ensuring that the water remains clean and safe for your fish. Without proper filtration, water quality can deteriorate quickly, leading to health issues for your aquatic life.
How can I tell if my filter is working properly?
You can check if your filter is working properly by observing the water flow. If the water is flowing steadily and the filter media appears clean (not clogged), it’s likely functioning well. Additionally, monitor the water parameters regularly; if they remain stable, it indicates that your filter is effectively maintaining water quality.
Can I use a filter without a heater in my 36-gallon tank?
While it is technically possible to run a filter without a heater, it is not recommended for tropical fish species that require a consistent temperature. Heaters and filters often work together to maintain a healthy environment for fish. It’s best to use both to provide stable conditions.
What are the signs that I need to upgrade my filter?
Signs that you may need to upgrade your filter include decreased water clarity, increased algae growth, a rise in ammonia or nitrite levels, or if your tank has become overstocked. Upgrading to a more powerful filter can help improve water quality and support a healthier environment for your fish.
The Bottom Line
In conclusion, selecting the right filter for your 36-gallon fish tank is crucial for maintaining a healthy aquatic environment. The ten products we have highlighted in this article were chosen based on a comprehensive analysis of performance, user reviews, and specific features suitable for a tank of this size. We considered factors such as filtration capacity, ease of maintenance, energy efficiency, and noise levels to ensure that each recommendation meets the diverse needs of aquarium enthusiasts.
By following our curated list, you can confidently choose a filter that will enhance the water quality and overall health of your fish tank. With the right filtration system in place, you will not only provide a clean habitat for your aquatic pets but also enjoy the beauty and tranquility of your aquarium with less hassle. Whether you are a beginner or an experienced aquarist, our guide aims to simplify your decision-making process, ensuring that your tank remains a thriving ecosystem for years to come.
