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MarineLand

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

    • Based on 17,869 reviews
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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.
  • 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.
  • Age range description: All Life Stages

Description

MarineLand Penguin 350 Power Filter 50 - 75 Gallon Aquarium, 350 GPH : Aquarium Power Filters : Pet Supplies.

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.

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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.

    • Perfect for Saltwater Aquariums!
This is my second Marineland Penguin 350 Filter, and I couldn’t be more satisfied with its performance. My first one lasted almost 5 years without a single issue, so when it came time to replace it, I didn’t hesitate to go with the same model again. The reliability and longevity of this filter are impressive—especially considering it’s running on a saltwater tank. The Penguin 350 has been a workhorse, offering great filtration for both mechanical and biological needs. I’ve found it to be very effective at keeping my aquarium water clear and healthy. The biowheel technology is a standout feature, providing excellent biological filtration that helps maintain a stable, clean environment for my fish and corals. The adjustable flow rate is also a great feature, allowing me to fine-tune the filtration to suit the specific needs of my saltwater setup. I appreciate how easy the filter is to maintain, with quick and hassle-free cartridge changes. It’s relatively quiet compared to other filters I’ve tried, which is a big plus, especially with a tank in a living room. Plus, the filter’s durability is top-notch. After almost 5 years of use, my old filter was still running strong with no issues, though I decided to replace it just for peace of mind. If you’re looking for a reliable, long-lasting filter that performs well in both freshwater and saltwater aquariums, I highly recommend the Marineland Penguin 350. It’s a great value for the price, and I’ll definitely be sticking with this model for the foreseeable future. ... show more
Reviewed in the United States on December 10, 2024 by Christopher R.
    • 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
    • Awesome, absolutely amazing!
Review Image by pugh pugh
This is my first aquarium. I had two smaller filters running on this 20 gallon tank. I have koi which are a “dirtier” fish supposedly. I was having to change out water every other day. Too much nitrogen. The water was clear (I thought). Saw this filter and decided to go big. I couldn’t believe the difference after just one day! And this pic was taken three days later. I’ve never seen such clear water! The filter was easy to assemble. Is quite. When the water drops it does get loud with the water falling but I love the sound. Just add more water if you don’t. I’m so happy i found this filter! ... show more
Reviewed in the United States on November 22, 2024 by pugh pugh

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