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MarineLand

Marineland Penguin Bio-Wheel Power Filter, Multi-Stage Aquarium Filtration

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Availability: In Stock.
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Arrives Nov 14 – Nov 15
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Size: 50 - 75 Gallon Aquarium, 350 GPH


Features

  • 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.

Description

Marineland® brand is the world’s leading brand of innovative equipment and environments for consumers wishing to create the ultimate aquatic showcase. Committed to fishkeeping success for over 40 years, the brand is the professional’s choice for commercial display systems and scientific research. Whatever you’re passionate about – freshwater or saltwater, big or small, beauty or science – make your aquarium your own. Marineland® Penguin® Bio- Wheel® Power Filter delivers easy, three-stage mechanical, chemical and biological aquarium filtration. This powerful filter contains patented rotating Bio-Wheel® technology to provide superior wet/dry biological filtration for nitrifying bacteria growth and eliminating toxic ammonia and nitrate fast. As it rotates, the Bio-Wheel exposes beneficial bacteria to the air, helping bacteria work harder and faster to keep your aquarium ammonia- free. The Bio-Wheel never clogs or needs to be replaced. All Bio-Wheel filters feature noise-reducing, two-piece vented covers and adjustable mid-level intake strainers. Uses Marineland Rite-Size™ Filter Cartridges with Black Diamond® Premium Activated Carbon to filter out dirt and debris for maximum water clarity. Available in five sizes: 75 GPH (for aquariums up to 10 gallons); 100 GPH (for aquariums up to 20 gallons); 150 GPH (for aquariums up to 30 gallons); 200 GPH (for aquariums up to 50 gallons); 350 GPH (for aquariums up to 70 gallons). Clean, sparkling water is the mark of a healthy, thriving aquarium. The amount of filtration needed to maintain an aquarium depends on a number of variables. These include tank size, individual maintenance habits and fish population. Whatever your individual needs, Marineland brand has the filtration products you need to deliver on-target, advanced filtration.

Specs & Other Info

Specification Details
Currently in Production Yes
Dimensions and Weight 8 (Height) x 15.25 (Length) x 6.12 (Width) inches; Weighs 3.53 Pounds
Model Identifier PF0350B
First Entered the Market June 20, 2004
Maker Marineland
Manufacturing Nation China

Frequently asked questions

The Penguin Bio-Wheel Power Filter is suitable for a variety of tank sizes, depending on the specific model. The 75 model is suitable for up to 10 gallons , the 100 model is suitable for up to 20 gallons, the 150 model is suitable for up to 30 gallons, the 200 model is suitable for up to 50 gallons, and the 350 model is suitable for up to 70 gallons tank.

The Bio-Wheel in the Penguin power filter serves as the biological filtration of the system. It helps in eliminating harmful ammonia and nitrate by encouraging the growth of beneficial bacteria. As water flows over the wheel, these beneficial bacteria break down these harmful chemicals, providing a safe environment for your fish.

Yes, the Penguin filter comes with a mid-level intake and adjustable flow, allowing you to control the speed of water that flows in your aquarium. It allows for custom water circulation based on the needs of your tank's inhabitants.

No, the Bio-Wheel generally does not need replacement unless it is damaged. It is designed to survive the life span of your aquarium, growing more effective as they mature. Replacing the Bio-Wheel can disturb the beneficial bacteria colony that helps with biological filtration.

Similar Products

Top Amazon Reviews

🚀 Abunda's Overview

This is our summary and key points to consider based on customer reviews.

The Marineland hang on back filters receives positive praise for its efficient filtration, with reviewers noting that it keeps their tanks crystal clear and odor-free. Users appreciate the bio-wheel functionality which holds beneficial bacteria aiding in maintaining a balanced ecosystem in the tank. The filter is easy to set up and monitor, and users have had long-term success with this product. A few users mentioned some initial challenges with setup, and noted that the filter can be a bit noisy.

Pros

  • 🐠 Provides clear and odor-free water
  • 🐟 Bio-wheel supports beneficial bacteria for a balanced aquatic environment
  • 🐡 Easy setup and maintenance
  • 🦀 Long-lasting and reliable

Cons

  • 🦑 Can be a bit noisy
  • 🐙 Some users had initial difficulties with setup

Should I Buy It?

If noise isn't a significant concern, the Marineland Hang on Back filter offers efficient filtration, easy setup, and contributes to a healthy aquatic environment. Users have found it effective and reliable over many years, making it a strong recommendation for any aquarium owner.

    • Superb filter system for all tanks
I used to work as a marine biologist for a major state aquarium. Marineland bio pumps have been around forever. I have been using them for both salt and freshwater tanks in gallon sizes ranging from 10-200. All have worked flawlessly and I will continue to use them as both primary and secondary systems. They are far superior to anything except canister systems BUT in some ways, better than canister filters due to ease of maintenance. I will pick 3-4 of these at one time over a single system any day. Simply, one goes down (breaks), another is still keeping your tank clean and filtered. Please read!!! your fish and you will be much happier and stun everyone else... Advantages: 1) You don't have to shut it down. Pull the cartridge, rinse the new one with distilled water, slowly replace it back in the formed slots. No shutting down valves, seals/o-ring probs etc.. 2) They're pretty quiet but can get the "bubbling noise" when your water level drops below a certain point.Typically just below the flat part of the outlets. It won't hurt it or the fish if it does, it just gets that "noisy" waterfall sound which some, people feel it's soothing. Keeping the water level up is a good thing and remember, those bio wheels add oxygen to the water. Canisters don't. 3) They are easy to fix unless the actual motor goes bad. A wheel sticks? clean the roller pins and slots. 5 minutes. Impeller stops? try pulling and just clean the surfaces of the magnet and cavity; again a 5 minute job. You do have to unplug it for those two jobs. TIPS- A) Do yourself a huge favor and buy an extra set or two of cartridges. They are easily found from mom-n-pop pet stores to large chain stores. You CAN rinse the old ones in an emergency. B) Go to the grocery store and get a gl jug of distilled water and keep it. Reason? tap and even well water has trace elements and minerals that will kill the beneficial bacteria and cause a cloudy white appearance (bacterial bloom) for a cpl days. C) Motor/impeller maintenance - Unplug the pump. Lift the cover off, grab the intake tube (square) and slightly wiggle while pulling upward. Clean with a paper towel and white vinegar on the rubber "grommets" and silver pins you see.Basically, make sure everything that is suppose to spin, does so smoothly. D) Bio wheel sticking - Just lift the cover off. No need to unplug. Lift the sticking wheel outuse a Q-tip to clean the slots where the wheel rests. Lightly clean the silver roller pins on the ends. Replace. DO NOT CLEAN OR WASH the paper wheel itself. Sounds like work?? it's not... A canister or in tank filter is ten times more work and messy. These are awesome filters.. Get it and take heed to what I wrote. You'll be happy with it.... ... show more
Reviewed in the United States on October 9, 2015 by Shiprekd
    • Great Value when compared to Canisters!
First one arrived used and broken so I demanded another one or refund. Amazon sent me a new one the next day and I dropped off the used one at the UPS store. I really like this filter on my 40 gallon since this one is 350 gallons per hour and I have 35 gallons of water it works perfect for me. I couldn't use the longer tube with the flow adjuster because it's too long for a 40 gallon as this is meant for a 75 gallon tank but it doesn't matter. I don't need to adjust the flow, it works perfectly. I also added in my own bio media like a course sponge and ceramic bio media. I might add pergen on top of that later. I would buy again. ... show more
Reviewed in the United States on October 14, 2025 by monet878
    • Full review, ignore lower ratings
These are great filters for a fantastic price (using Amazon Prime). I have several different brands of filters on my four tanks, and the Penguins rock! I'm just going to add my two cents along with the other five- and four-star reviewers. Don't pay attention to the people who give these filters bad ratings. Their issues are coming from ignorant use of the filters. These filters do not self-prime. You must fill the filter reservoir(s) up all the way before attempting to start the filter. If you do not, you will burn the filter out. This is why the one-star people keep killing multiple filters the first day they have them. And as for sound, these filters are incredibly quiet. I have a Penguin 200 running alongside an AC50 in my 29g (yes, I like to over-filter haha) and the Penguin is quieter than the more expensive/trendy AquaClear. The Penguin moves the water very well. If you raise your water level to just over the outflow lip, you will get great surface ripples that extend out to the front of the tank. Greater ripples=greater surface agitation=greater oxygenation of the water. Having the water angle out more laterally also helps get the tank's water to turn over better. My AC dumps the water downwards, which is great in that one spot but does not create a strong barrel current in the tank like the Penguin does. The Penguin 200 has two cartridge slots. I use the first slot for mechanical filtration (I wrap quilting batting around an old plastic cartridge), and Marineland also offers empty cartridge baskets online that you can fill with Biomax, carbon, etc. It also features the Biowheel, which grows beneficial bacteria on it, further increasing your bio filtration. The 350 model is the same; it just has four cartridge slots and two bio wheels. When first running, the wheel spins fairly fast and can create a trickle sound. This bothered me the first couple of days, but soon became therapeutic...just like any of those noise machines people use to simulate the sound of streams, rain, etc. to help them sleep. That being said, after a month or two has passed and the Biowheel begins to slow down a bit from the weight of the stuff growing on it, the trickle noise will disappear completely a the wheel will not be moving fast enough to fling the water with such force. Breakdown and maintenance is easy. Just be sure to thoroughly clean out the filter once every month or two. As long as you're not over-feeding or stay on top of your tank cleaning, the filter should not have any issues remaining fairly clean. To all new hobbyists: DO NOT rinse your filter cartridges/pads nor the Biowheel with tap water. The chlorine in your city water will kill your beneficial bacteria and your cycle will crash. The intake tube has a wonderful adjustable vent towards the top of the tube. This allows the filter to pull in water from both the top and bottom of the tank. You can close it if you want more pull from the bottom, but I like to keep mine open all the way as it helps draw in water that is normally in a dead spot directly below the filter. I love the Penguins and just ordered another 350 to go alongside the Aqua-Tech 30-60 filter in my new 55g. A side note: both the Aqua-Tech 30-60 and Penguin 200/350 share the same types of cartridges. The Aqua-Tech 30-60 actually looks the exact same as the Penguins...just without the Biowheel :) ... show more
Reviewed in the United States on September 21, 2015 by Andre Deherrera

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