Best Filter for Red Eared Slider Tank: 7 Top-notch Choices Reviewed

The red-eared slider turtle is one of the most popular turtles in the world. It has appeared in numerous renowned publications such as Palmer and Braswell (1995) and Carmichael and Williams (1991). This animal is docile and allures many due to its characteristic of requiring less and adapting faster to new habitats. If you’re looking for a pet turtle to rear, then a Red-eared slider is your ideal pet as it requires less effort and resources to maintain and manage.

Well, since these pets are fun to have in the house, you should get some accessories for them so that they’ll stay healthier and happier in your home. One of these is the tank filter, which is vital to the life of the turtle. Buying the wrong filter cannot just waste your money but also endanger the lives of these beautiful creatures. Check out the best filter for red-eared slider tank reviews here.

Best Filter for red-eared slider Tank Comparison Chart

Do red-eared sliders need a filter?

Yes, turtles are dirty creatures as they feed on plenty of food, which results in them releasing tons of waste. The components of these wastes include ammonia and other harmful substances. Since they stay on the water, red-eared sliders will release these toxic substances into the water hence the need for a reliable and robust filter. Besides, they dislike strong currents, and therefore you need a filter that can control the strength of the currents.

The filter should also be durable and resistant to clogging. Turtles prefer digging around the substrate, which means that they juggle a substantial amount of sand. Therefore, you’ll need a filter that is resistant to clogging or one that can withstand any matter that is sucked into it.

Besides, turtles are pretty curious creatures, so you’ll need a powerful filter that can withstand their nature. These animals also require oxygen, and you should get a filter with proper water aeration.

Best Filter For Red-Eared Slider Tank Reviews

While there are many types of aquarium fertilizers that you can get, not all are safe for plants and fish. Check out reviews of our top 10 picks this year.

1. Fluval FX6 Canister Filter

The Fluval FX6 Canister Filter is a powerful and reliable filtration system designed for aquariums up to 400 gallons. This high-capacity filter is the workhorse of Fluval’s canister lineup, delivering exceptional performance and efficiency. For aquariums of up to 400 gallons, the Fluval Canister filter delivers performance and reliability in one pack. The multi-stage filters make it a vital filter that pumps up to 3500L of water per hour. Also, the pump utilizes advanced microchip technology that monitors the pump to ensure that its performance is outstanding.

What’s more, it’s easy to start the filter: you only need to add water, and the pump starts operating.  It is easy to change the water, which eliminates the necessity to buy heavy buckets.

What I like?

I appreciate the comprehensive filtration capabilities of the FX6, as it includes all necessary filter media for mechanical, chemical, and biological filtration. The Aqua-Stop valves with the leak-proof Click-Fit attachment system make installation and rotation a breeze. The Multi-Directional Output nozzles allow for customizable water flows, providing flexibility in creating the ideal water circulation in the aquarium. The Purge Valve and drain hose simplify maintenance tasks, ensuring the filter remains clean and efficient. The rubberized feet contribute to a quiet operation, allowing for a peaceful aquarium environment.

What I don’t like?

One aspect that some users may consider a drawback is the size of the FX6. Its 21″ tall design may pose a challenge for those with limited space or smaller aquarium setups. Additionally, the higher capacity and performance of the FX6 come at a higher price point compared to some other filters on the market.

In conclusion, the Fluval FX6 Canister Filter is a powerful and efficient filtration system that delivers excellent performance for large aquariums. With its comprehensive filtration capabilities, convenient features, and versatile compatibility with both freshwater and saltwater setups, it provides the necessary filtration for a healthy aquatic environment. While the size and price may be considerations for some users, the FX6’s functionality and reliability make it a solid choice for serious aquarium enthusiasts.

2. OASE Indoor Aquatics Biomaster Thermo 250

The OASE Indoor Aquatics Biomaster Thermo 250 is a premium external filter with an integrated heater designed for both marine and freshwater aquariums. This compact filter offers 4-stage filtration, ensuring optimal water quality and clarity. With the heater built into the filter, it provides a neat and streamlined appearance in your aquarium setup.

What I like?

I appreciate the integrated heater in the Biomaster Thermo 250, as it provides precise temperature control and eliminates the need for an additional heater in the aquarium. The EasyClean pre-filter module makes maintenance simple and extends the life of the filter foams. The adjustable flow control and sealed filtration pathways ensure efficient filtration and customizable water flow. The quiet operation is also a big plus, creating a peaceful environment for both the fish and the aquarium owner.

What I don’t like?

While the Biomaster Thermo 250 offers excellent features and performance, it may be considered a bit pricey compared to some other options on the market. Additionally, the setup and maintenance instructions can be a bit complex for some users, requiring careful reading and understanding.

In conclusion, the OASE Indoor Aquatics Biomaster Thermo 250 is a top-quality external filter with an integrated heater that provides efficient and reliable filtration for both marine and freshwater aquariums. Despite a slightly higher price tag and complex instructions, its sealed filtration pathways, EasyClean pre-filter module, and customizable flow control make it a solid choice for aquarium enthusiasts who value water quality and simplicity in their setups.

3. Penn-Plax Cascade 1000 Aquarium Canister Filter

The Penn-Plax Cascade 1000 Canister Filter is a reliable and efficient filtration system that ensures crystal clear water in your aquarium. With a flow rate of 265 gallons per hour, it is recommended for tanks up to 100 gallons in size. This versatile filter is suitable for both freshwater and saltwater aquariums, making it a great choice for various setups, including turtle habitats.

What I like?

I appreciate the ease of use provided by the push-button primer and the rotatable valve taps, which make installation and maintenance a breeze. The stackable media baskets allow for customizable filtration options, ensuring optimal water quality. The included filter media effectively addresses common water concerns such as floating particles, chemicals, and odors. The additional accessories, such as the hose clamps and alignment clamps, enhance the overall user experience.

What I don’t like?

One aspect to consider is the size of the Cascade 1000, as it measures 11.5″ (W) x 10″ (D) x 17″ (H). This may be bulky for smaller aquarium setups or those with limited space. Additionally, some users have reported occasional issues with the durability of certain components.

In conclusion, the Penn-Plax Cascade 1000 Canister Filter offers reliable and efficient filtration for aquariums up to 100 gallons. Its ease of use, customizable filtration options, and included accessories make it a practical choice for both freshwater and saltwater setups. While the size and occasional durability concerns may be factors to consider, the overall performance and functionality of the Cascade 1000 make it a valuable addition to any aquarium.

4. MarineLand Magnum Polishing Internal Canister Filter

The MarineLand Magnum Polishing Internal Canister Filter is a versatile and efficient filtration option for aquariums up to 97 gallons. With its powerful filtration capabilities and compact design, this filter offers reliable performance to keep your aquarium water clean and clear.

What I like?

• The quick and easy startup process saves time and ensures hassle-free installation.
• The versatility in filter media options allows customization according to specific aquarium needs.
• The included micron cartridge provides efficient water polishing, resulting in clear and pristine water conditions.

What I don’t like?

• The filter may not be suitable for larger aquariums or those with a heavy bioload, limiting its application in certain setups.
• Regular replacement of filter media can add to the ongoing maintenance cost.

In conclusion, the MarineLand Magnum Polishing Internal Canister Filter offers convenient and versatile filtration for medium-sized aquariums. Its reliable performance, quick startup, and micron water polishing feature make it a valuable addition to any fishkeeping setup. However, it’s important to consider the capacity limitations and the need for regular filter media replacement. Overall, it provides effective filtration and helps maintain a healthy aquatic environment.

5. AMOSIJOY 265GPH 3-Stage Canister Filter

The AMOSIJOY 265GPH 3-Stage Canister Filter is an external aquarium filter designed to provide efficient filtration for large fish tanks and aquariums. With its quiet operation and customizable filter media options, it offers a convenient solution for maintaining optimal water quality.

What I like?

• The high flow rate and suitable capacity make it ideal for larger aquarium setups.
• The lift-draw style vent valve and flow regulating handle provide convenience and control over water flow.
• The ultra-quiet operation ensures a peaceful living environment without noise disruptions.
• The three layers of filter baskets allow for customizable filtration options, promoting water quality and clarity.

What I don’t like?

• Limited information on long-term durability may raise concerns about the filter’s reliability over extended periods.
• Additional filter media may be required for customization, adding potential extra costs.

In conclusion, the AMOSIJOY 265GPH 3-Stage Canister Filter offers a convenient and efficient filtration solution for larger fish tanks and aquariums. With its high flow rate, quiet operation, and customizable filter media options, it provides effective water purification and maintenance. However, it’s important to consider the long-term durability and potentially purchase additional filter media if customization is desired. Overall, it is a suitable choice for maintaining optimal water quality in your aquatic environment.

6. EHEIM Classic 2215 External Canister Filter

The EHEIM Classic 2215 External Canister Filter is a legendary filter known for its tried and tested technology, efficiency, and versatility. With its compact size and comprehensive media setup, it provides effective mechanical, biological, chemical, and absorptive filtration for both freshwater and saltwater aquariums.

What I like?

• The proven technology and efficiency of the EHEIM Classic filter line instills confidence in its performance and reliability.
• The flexibility in media setup allows for customization to meet specific filtration needs.
• The inclusion of accessories and filter media provides convenience and ensures a comprehensive filtration system.

What I don’t like?

• The lower flow rate of 164 GPH may be a drawback for those who require higher water flow rates.
• The initial setup and ongoing maintenance may require some time and effort.

7. Zoo Med Turtle Clean External Canister Filter

The Zoo Med Turtle Clean External Canister Filter is designed specifically for turtle tanks, providing three stages of filtration to keep the water clean and clear for your beloved turtles. With its slimline design, adjustable flow control, and combination of mechanical, biological, and chemical filtration, this filter offers convenience and efficiency for turtle owners.

What I like?

• The slimline design of the canister filter allows for easy installation and placement in tight spaces.
• The adjustable flow control system enables customization of water flow to suit the needs of your turtles and the tank setup.
• The combination of mechanical, biological, and chemical filtration ensures thorough purification for a clean and healthy turtle habitat.

What I don’t like?

• The cost and availability of replacement filter media should be taken into consideration for ongoing maintenance.
• The filter is recommended for tanks up to 50 gallons, which may limit its suitability for larger tanks or multiple turtles.

In conclusion, the Zoo Med Turtle Clean External Canister Filter is a reliable choice for maintaining a clean and healthy environment in turtle tanks up to 50 gallons. Its slimline design, adjustable flow control, and effective combination of filtration methods make it a convenient and efficient option for turtle owners. However, if you have a larger tank or multiple turtles, you may need to consider alternative filtration solutions. Regular maintenance and availability of replacement filter media should also be considered for long-term use.

Buying Guide for red-eared slider turtles:

Before you buy the right filter, you need to consider several things in mind. The following are essential considerations to think about.

Brand

When buying a turtle tank, the priority should be its brand. Brands don’t lie, and the reputation of the brand plays a key role in the quality of the products they sell. Always ensure you buy a filter from a reputable brand. Also, new brands should get a reputation faster is they sell quality products. The brands in our article are some of the most reliable in the industry. With them, you’ll not need to double-check the authenticity of their products.

Tank Size and Flow Rate

These two are some of the top factors to look for in a filter for your turtle tank. The manufacturers usually indicate this information in the product description. Therefore, it should not be hard to find the models that work perfectly for you.

Buy a filter with a higher flow rate. Also, you should buy a filter that works well with the size of the tank you are using. If you filter more water whenever you are using the filter, then you’ll easily keep your tank clean. A cleaner environment ensures your turtle grows and feeds well.

Type of motor

The motor is a crucial component of the filter. When buying a turtle tank filter, always go for one with a reliable motor. With a reliable motor, you’ll get an efficient filter that will work for a longer period of time. Also, pick a filter with an easy-to-clean and maintain motor. However, some motors’ construction does not necessitate maintenance.

Durability

No one wants to spend money on a low-quality product. Therefore, it’s crucial to spend money on a high-quality filter. When it comes to filters, the material used in construction is essential. Most filters are made from plastic materials, and therefore the strength of the material is important. Choose a model with hard plastic material as its best for long-term use.

Maintenance of the Filter

The filter’s main function is to clean water, and therefore, it gets dirty after some little use. Therefore, you should get a filter that is easy to disassemble and maintain. Most manufacturers also offer a guide for taking apart the filters.

How to Set Up a Tank for Your Red-Eared Slider Turtle?

Red-eared turtles are tiny when babies but quickly grow into adults in a few months. They require ample lighting and sufficient filtration in a large aquarium. To set up a tank:

Choose an Appropriately Sized Aquarium

Every 10 inches of turtles require 10 gallons of water. Therefore, for 2 four-inch turtles, you get a total of 8 inches, and they’ll require 80 gallons of water. Turtles grow rapidly, and if they become overcrowded, they fall sick or fight. Therefore, ensure you buy a tank that will sufficiently house your turtles.

Choose a Substrate 

Choose a substrate to use in the tank. Turtles love digging deep within their enclosures, and a substrate will help trap dirt, maintain optimum PH, and keep the water cleaner. However, turtles feed on anything that can fit in their mouths, and therefore large substrates like river rocks are the best substrates.

Clean and Filtrate the Water 

Turtles are messy animals and require high-level filtration. Usually, if you have a 200-gallon tank, then get a filter that can handle up to 400 gallons of water. Also, chlorinate the water and follow the instructions on the manufacturer’s package.

Create a basking area for your turtles 

Red-eared sliders spend most of their time out of the water, and therefore a basking area is the ideal away-from-water spot. Consequently, the larger the basking area, the happier your turtles become. A piece of wood is the ideal basking place for small turtles, while a rocky land area works for larger turtles. The area should also support the turtle’s weight.

Provide The Turtles with UV Light

If your turtles live inside an aquarium, then you should offer them 12 hours of UV lighting using bulbs. If they leave outside in a pond, then you won’t need any lamps. The UV light helps read-eared sliders to metabolize calcium, and its absence can lead to metabolic bone disease.

Maintain The Optimum Water Temperature

Red-eared sliders require temperatures that are slightly above room temperature. You can use an aquarium heater to raise the temperature to the required levels. Also, monitor the temperature regularly to ensure it is neither too cold nor too hot.

Frequently Asked Questions (FAQs) regarding filters for red-eared slider tanks:

Q: How can I set up the filter for my turtle tank?

A: When it comes to setting up filters for tanks, they vary for different models. This is because turtle tanks have different working mechanisms. Also, the internal and external filters vary in their setup. After receiving your package, start by assembling the different parts of the filter using the manual guide. 

Also, attach the different accessories to the filter and get it in an upright position. If it requires connecting tubes, then seal them at the joints to avoid leakages. 

Q: How often should I clean the filter in my red-eared slider tank?

A: The frequency of filter cleaning depends on various factors, such as the filter type, tank size, and the number of turtles you have. As a general guideline, it is recommended to clean or perform maintenance on the filter every 2-4 weeks. However, it’s important to monitor the filter’s performance and water quality regularly to determine the appropriate cleaning schedule for your specific setup.

Q: Can I use a regular fish tank filter for my red-eared slider tank?

A: While some fish tank filters may work for red-eared slider tanks, it’s generally recommended to use filters specifically designed for turtle tanks. Turtles produce more waste and require more powerful filtration compared to fish. Turtle tank filters often have features like turtle-friendly intakes, adjustable flow rates, and larger media capacity to handle the unique needs of turtles.

Q: Should I use a canister filter or a power filter for my red-eared slider tank?

A: Both canister filters and power filters can be suitable for red-eared slider tanks, depending on the tank size and specific requirements. Canister filters generally provide higher filtration capacity and are recommended for larger tanks. Power filters, also known as hang-on-back filters, are commonly used for smaller tanks and offer easy installation and maintenance.

Q: How do I choose the right filter size for my red-eared slider tank?

A: Selecting the appropriate filter size depends on the tank’s volume and the number of turtles you have. As a general rule of thumb, the filter should have a flow rate that is at least 3-5 times the tank volume per hour. For example, if you have a 40-gallon tank, the filter should provide a flow rate of 120-200 gallons per hour.

Q: Do I need an additional heater if my filter has an integrated heater?

A: If your filter has an integrated heater and can maintain the desired temperature range for your red-eared sliders, you may not need an additional heater. However, it’s important to monitor the water temperature regularly to ensure it remains within the appropriate range for your turtles’ well-being.

Q: Can I use a sponge filter for my red-eared slider tank?

A: Sponge filters can be used as part of the filtration system in red-eared slider tanks, especially in smaller setups or as supplemental filtration. However, due to the high waste production of turtles, a sponge filter alone may not provide sufficient filtration. It is recommended to combine a sponge filter with a more powerful filter to ensure optimal water quality.

Q: How do I know if my filter is providing adequate filtration for my red-eared sliders?

A: Monitoring water parameters is essential to determine if your filter is providing sufficient filtration. Regularly test the water for ammonia, nitrite, and nitrate levels. Additionally, observe the behavior and health of your red-eared sliders. If the water parameters remain stable within the appropriate ranges and your turtles are healthy, it indicates that the filter is effectively removing waste and maintaining water quality.

Q: Is it necessary to use activated carbon in the filter for a red-eared slider tank?

A: Activated carbon can be beneficial in removing certain chemicals, odors, and discoloration from the water. However, it is not essential for a red-eared slider tank unless you have specific concerns such as medication residues or persistent odor issues. The primary focus should be on mechanical and biological filtration to remove waste and maintain water quality.

Q: How can I reduce noise from my filter in the red-eared slider tank?

A: Excessive noise from a filter can be bothersome. To reduce noise, ensure that the filter is properly installed and securely positioned to minimize vibrations. Check for any loose parts or obstructions that could be causing noise. You can also try placing a sponge or foam material around the filter or use a sound-dampening pad underneath it to absorb vibrations and reduce noise.

Q: Can I turn off the filter at night in my red-eared slider tank?

A: It is generally not recommended to turn off the filter at night in a red-eared slider tank. The filter plays a crucial role in maintaining water quality by removing waste and promoting oxygenation. Turning off the filter for an extended period can lead to a decrease in oxygen levels and increased toxin buildup. It’s best to keep the filter running continuously to ensure a healthy and stable environment for your turtles.

Final Verdict

It is no doubt that choosing the best turtle tank will go a long way in ensuring the health and optimum growth of your turtles. With multiple options in our review, you should have no challenge in picking the right tank for your use. Choose your ideal budget and make sure it is durable. It’s always advisable to spend more money and get a quality tank.