Best Filter for 75-Gallon Saltwater Tank of 2021: Top 6 Picks

Last update: 2021-07-28

It goes without saying that you must keep the water in your tank clean so your fish can live healthy and happy. An aquarium filter is an equipment for this job. It’s quite easy to choose a filter for freshwater, but what about saltwater?

This post provides a complete step-by-step instruction for you to choose the best filter for 75-gallon saltwater tanks.

Here are the best filter for 75-gallon saltwater tank you can buy in 2021:

  • Best Overall: MarineLand Penguin 350 BIO-Wheel Power Filter
  • Best For Goldfish Tanks: Aqua Clear - Fish Tank Filter
  • Best For Quick Maintenance: Marineland Magniflow Canister Filter
  • Quiet: Polar Aurora Free Media 265GPH
  • Best For Turtle Tank: Penn Plax Aquarium Cascade Canister Filter
  • Best For Brown Algae Elimination: Coospider Sun JUP-01
6 Best Filter For 75-Gallon Saltwater Tank
Best Overall
MarineLand Penguin 350 BIO-Wheel Power Filter
    Best For Goldfish Tanks
    Aqua Clear - Fish Tank Filter
      Best For Quick Maintenance
      Marineland Magniflow Canister Filter
        Quiet
        Polar Aurora Free Media 265GPH
          Best For Turtle Tank
          Penn Plax Aquarium Cascade Canister Filter
            Best For Brown Algae Elimination
            Coospider Sun JUP-01

              Best Overall: MarineLand Penguin 350 BIO-Wheel Power Filter

              MarineLand Penguin 350 BIO-Wheel Power Filter
              MarineLand Penguin 350 BIO-Wheel Power Filter
              8Good
              Pros
              • Good at ammonia and nitrite removal - biological science
              • Optimize waste, discoloration and odor removal - chemical and three-stage mechanical filtration combined with faster-acting Black Diamond Premium Activated Carbon
              • Run quietly - noise-reducing 2-piece vented covers
              • Very affordable
              Cons
              • Noisy if you use it for a tank with too petite sand and gravel

              Compared the quality of MarineLand Penguin 350 to other similar options, we realized that it is nearly ½ the price, which means this is definitely a good deal.

              One of the factors that make up this brand's name is applying biological science – proven best at eliminating toxic ammonia and nitrite.

              It also utilizes chemical and three-stage mechanical filtration combined with faster-acting Black Diamond Premium Activated Carbon to optimize the capability of waste, discoloration, and odor removal.

              If noise is one of your biggest concerns when looking for a tank filter, rest assured on this one because it is added with noise-reducing 2-piece vented covers. So, the only sound you might hear is the water shooting into the tank.

              MarineLand Penguin 350 BIO-Wheel Power Filter Specifications

              Dimension

              15.25 x 6.12 x 8 inches

              Flow Rate

              350 GPH

              Max Tank Size

              50-75 Gallons

              Highlight Features

              Biological science

              Chemical and three-stage mechanical filtration

              Faster-acting Black Diamond Premium Activated Carbon

              Noise-reducing 2-piece vented covers

              Verdict

              By applying the latest, most advanced technologies in removing waste, odor, and toxins without causing loud noise or flattening your wallet, the MarineLand Penguin 350 brings home our Best Overall Choice award.

              Best For Goldfish Tanks: Aqua Clear - Fish Tank Filter

              Aqua Clear - Fish Tank Filter
              Aqua Clear - Fish Tank Filter
              9Outstanding
              Pros
              • Provide 7x larger filtration volume than others – applying biological, chemical, mechanical filtrations
              • Operate at a super-low cost – optimize contact time with energy-efficient pump and filter media
              • Reliable – backed by a lifetime warranty
              Cons
              • The intake tube is short
              • Require manually priming it when it’s first turned on

              The Aqua Clear - Fish Tank Filter is a fantastic solution for your messy goldfish tank at the lowest operating costs.

              To do that, Aqua Clear optimizes the product with biological, chemical, mechanical filtrations, comprised of Cycle Guard, Biomax, Activated Carbon Filter, and AquaClear Foam.

              So, compared to other counterparts at this price point, we find this option to offer 7x larger in the filtration volume for superior water quality. What’s more, it gives you better contact time with energy-efficient pumps and filter media to hence minimize the operating expenses.

              The biggest bonus is this product is backed by manufacturer’s lifetime warranty.

              Aqua Clear - Fish Tank Filter - Specifications

              Dimension

              17.4 x 12.5 x 11 inches

              Flow Rate

              500 U.S. Gal./h (1890 L/h)

              Max Tank Size

              60 to 110 Gallons

              Highlight Features

              Applying biological, chemical, mechanical filtrations

              Optimize contact time with energy-efficient pump and filter media

              Backed by a lifetime warranty

              Verdict

              Move a lot of waste, easy to clean, and quiet, we find the Aqua Clear - Fish Tank Filter is perfect for goldfish tanks.

              Best For Quick Maintenance: Marineland Magniflow Canister Filter

              Marineland Magniflow Canister Filter
              Marineland Magniflow Canister Filter
              8.6Great
              Pros
              • Keep the aquarium water crystal clean - a three-stage filtration system
              • User-friendly – provide a full kit to start and run for the first month
              • Quick to maintain with no spilling issues - a quick-release valve block
              Cons
              • The impeller could work more smoothly
              • The stock foam and other media feels cheap
              • The tray is thin

              We highly recommend this option for those fish keepers who love something easy and quick to maintain.

              By featuring a quick-release valve block that separates from the housing, you can shut down the water flow easily for fast maintenance with no spilling issues.

              On the filter functionality, it is whisper-quiet, primes easily, and keeps our aquariums crystal clean by using a three-stage filtration system. A big plus is it comes with everything you need to get started and run for the first month, which is good for beginners.

              Marineland Magniflow Canister Filter Specifications

              Dimension

              14 x 11.02 x 18 inches

              Flow Rate

              220 GPH, 360 GPH, and 360 GPH sizes.

              Max Tank Size

              Up to 100-Gallons

              Highlight Features

              A three-stage filtration system

              Provide a full kit to start and run for the first month

              A quick-release valve block

              Verdict

              If you are tired of fighting with your old tank mount filter system that requires tons of time to maintain, this low-maintenance option might be a potential replacement.

              Quiet: Polar Aurora Free Media 265GPH

              Polar Aurora Free Media 265GPH
              Polar Aurora Free Media 265GPH
              8.6Great
              Pros
              • Easy to start - a self-priming pump
              • Low-maintenance - a single valve
              • Able to adjust the output flow - adjustable spray bar
              Cons
              • The instructions are a little difficult to read

              Polar Aurora Free Media 265GPH is a great pump, especially for the price. It comes with everything needed to get started, including media and other filtration materials.

              It has a self-priming pump so you don’t have to manually siphon it during the setup. Besides, the combination of this pump and a single valve makes anything relating to maintenance jobs a lot simpler.

              To talk about our most favorite feature, it would be the noise reduction technology. This product emits nearly no sound while running that if you get used to the hang-on-back filters, this brings a whole other world of silence.

              The adjustable spray bar is another notable feature. It helps to adjust the output flow from this filter with lots of more ease.

              Polar Aurora Free Media 265GPH Specifications

              Dimension

              10 X 10 X 16 in (L x W x H)

              Flow Rate

              265GPH

              Max Tank Size

              Up to 75 gallons

              Highlight Features

              A self-priming pump

              A single valve

              Adjustable spray bar

              Verdict

              If you’re in the market for the quietest 75-gallon saltwater tank filter, this fits the bill.

              Best For Turtle Tank: Penn Plax Aquarium Cascade Canister Filter

              Penn Plax Aquarium Cascade Canister Filter
              Penn Plax Aquarium Cascade Canister Filter
              9Outstanding
              Pros
              • Ideal for 75-gallon turtle tanks - a flow rate of 265 GPH
              • User-friendly - a push-button primer, three huge-capacity media baskets, and 360-degree rotatable flow valves
              Cons
              • All the intake and outflow hardware is a bit bulky
              • Not so perfectly quiet

              Similar to goldfish, turtles generate lots of waste.

              In a 75-gallon turtle tank, we find this Penn filter (featuring a flow rate of 265 GPH) to perfectly handle an ultra-high amount of waste produced by your pet turtle and keep the water clear.

              Regardless, it is super-easy to use. The product highlights a push-button primer for quick priming the filter, three huge-capacity media baskets to customize your media, and 360-degree rotatable flow valves for easy maneuvering in the smallest tank.

              For such wonderful performance, it is priced under $150 while most other similar canisters we could find are at least $300. That’s why we would call this a rare “entry-level” priced option that can afford a professional's expectations.

              Penn Plax Aquarium Cascade Canister Filter Specifications

              Dimension

              17 x 11.5 x 10 inches

              Flow Rate

              265 GPH

              Max Tank Size

              Up to 100 gallons

              Highlight Features

              A flow rate of 265 GPH

              A push-button primer, three huge-capacity media baskets, and 360-degree rotatable flow valves

              Verdict

              For those who are looking for a functional yet budget-friendly canister filter for your turtle tank, this is a must-try.

              Best For Brown Algae Elimination: Coospider Sun JUP-01

              Coospider Sun JUP-01
              Coospider Sun JUP-01
              9Outstanding
              Pros
              • Remove brown algae efficiently - an extremely powerful pump + a UV light
              • Easy to assemble
              Cons
              • Noisy at first
              • The instructions were absolutely unintelligible

              This option is one of the most popular filters to clear up the water caused by brown algae.

              By featuring an extremely powerful pump to create a very strong current plus a UV light, it immediately puts a stop to algae bloom in any 75-gallon saltwater tank within a short time. The setup is really easy, taking around 20 minutes to finish.

              No leakage during our test. It also comes with replacement filters and bulbs while the price tag is under $50. Bang for bucks!

              Coospider Sun JUP-01 Specifications

              Dimension

              12" L X 3.3" W X 3.75" H

              Flow Rate

              211gph

              Max Tank Size

              80 Gallons

              Highlight Features

              An extremely powerful pump + a UV light

              Verdict

              If you’re seeking the best filter for brown algae elimination, this is completely money well spent.

              How To Choose The Best Filter For 75-Gallon Saltwater Tank?

              Kinds of Filters

              Freshwater and saltwater are not the same, so it’s important to pick the right type of filter that will help your saltwater tank.

              • Chemical filters: these filters use regular or activated charcoal that eliminates dissolved impurities from the tank. They will help remove all toxins in the water. But you shouldn’t use this type of filter if your tank is medicated.
              • Biological filters: this is a great type for saltwater tanks. These filters let beneficial bacteria thrive that will take in unwanted substances in the water. Live rock, which is colonized by beneficial bacteria, is the most popular kind of biological filter.
              • Sump filters: this is the best type for a saltwater tank. It often consists of a filter sponge, a protein skimmer, a filter sock, and substrate reactors. It sucks water in, filters the water, and pumps it back into the aquarium. But it cost the most and needs additional equipment and plumbing.
              • Canister filters: you can use this type alone or with other types of filter, out it inside or under the tank. However, it needs frequent cleaning.
              • Fluidized bed filters: it’s a simple type of filter that uses sand as the filtration medium. The sand doesn’t retain waste thanks to elevated water circulation. It’s a highly efficient filter but takes a while to mature.

              Filter Media

              Each filter may come with a different filter media, so the choice is dependent on your preference. For a saltwater tank, you can choose bio-filters, ceramic rings, or carbon among other media.

              Flow Rate

              Keep in mind that the recommended flow rate for a tank is at least 4 times the tank’s capacity or higher. So, for a 75-gallon tank, you need a flow rate of at least 300 GPH (gallons per hour). But if you can find a higher rate, it will be better.

              Ease of Maintenance

              If you have a lot of free time, high maintenance filters may not be a problem. But if you are busy, you should get a filter that takes weeks before it needs cleaning or filter media replacement.

              Which Brands Make The Best Filter For 75-Gallon Saltwater Tank?

              MarineLand

              This brand has a long history of making equipment for marine life. It’s best known for innovation, diversity, reliability, and advanced technology in each product.

              Penn-Plax

              Since its foundation in 1956, this brand has spent over 50 years innovating and improving its product quality to bring the most benefits to your fish. If quality is the one thing you’re looking for, you must try this brand.

              FAQs

              What are the benefits of a filter for a fish tank?

              The aquarium filter removes harmful chemicals, excess food, free-floating particulate, fish waste, and decaying organic matter from the tank water. This maintains a clean environment for the fish to live in.

              What size filter do I need for a 75-gallon fish tank?

              For a 75-gallon fish tank, you need a filter 4 times the capacity, meaning at least 300 gallons per hour.

              What can I put in a 75-gallon tank?

              A tank this large can house 25-30 fish of several types like cold-water fish, goldfish, tropical fish, zebra danios, Oscar, SilverDollars, Clownfish, etc.

              How many GPH does a 75-gallon tank need?

              You need at least 300 GPH for a 75-gallon tank, more GPH is better.

              How often should I change the water in my 75-gallon tank?

              This depends on the levels of nitrate, nitrite, and ammonia. If the levels are good, you can change 25% of the water every week. If the levels are higher, you change a higher percentage of water to reduce the level of these substances.

              Conclusion

              We hope that this post will help you find the best filter for 75-gallon saltwater tank easily and quickly. The filter is a crucial part of the fish tank that directly affects the life quality of your fish, so make sure you will make a smart choice.

              Harry Ramos
              Harry Ramos

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