Marineland Bio-Wheel Penguin Aquarium Power Filter, 20-gal

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$32.99 (-6%) Chewy Price
$35.19 List Price
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About This Item

Details

  • Offers complete three-stage filtration (mechanical, biological & chemical)for both freshwater and saltwater tanks.
  • Rite-Size filter cartridge traps debris and removes odors and discoloration, providing mechanical as well as chemical filtration.
  • For maximum efficiency, fast-acting Black Diamond Premium Activated Carbon is used in each cartridge.
  • An extra-large BIO-Wheel rotates to cultivate the beneficial bacteria that remove toxic ammonia and nitrates from the water.
  • BIO-Wheel features noise-reducing vented covers and adjustable intake strainers.

Instructions

Learn More About Marineland From Our Team of Experts

Frequently bought together

Questions & Answers

48 Customer Questions

how long is the tubing

Will this bio wheel fit a marine land penguin 275

Can you adjust the flow rate?

Answer by Chewy • Apr 23, 2018
There is a gray lever that opens and closes, allowing water movement at mid-level. If closed, the filter will only pull water from the bottom of the tank.

My bio wheel will not spin.

Answer by Chewy • Dec 31, 2019
Usually when the Bio-Wheel won't spin either the water level is low, the filter system needs cleaning or the Bio-Wheel bearings are misplaced or dirty. Take the filter off of the tank, take it apart, and give it a good cleaning using warm water and distilled white vinegar. Make sure to pay close attention to the impeller, motor, intake tube, impeller housing and bearings. Rinse them well after cleaning and re-install.
Reviews
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3.8
Rated 3.8 out of 5 stars
668 Ratings
Terms & Conditions

472 Customer Reviews

Rated 1 out of 5 stars
By Mixhele on Jan 12, 2026

Don't waste yoir money!

I had my first one for 3 months, didn't work as it should. Chewy replaced it and in less than a week.. stopped working again.

I had my first one for 3 months, didn't work as it should. Chewy replaced it and in less than a week.. stopped working again.

Rated 5 out of 5 stars
By Richard on Oct 29, 2025

I was a REP for Marineland

I've always liked the "concept" of these Bio-Wheel filters. THE HOOK? Buying EXPENSIVE new filter inserts. I will only buy those if actually needed, but clean them

I've always liked the "concept" of these Bio-Wheel filters. THE HOOK? Buying EXPENSIVE new filter inserts. I will only buy those if actually needed, but clean them in tank water in a bucket while doing water changes NO issues for me!

Rated 2 out of 5 stars
By Emma on Nov 13, 2025

Worked great at the beginning

Worked great for 4 months, but now it makes a continuous loud noise. I’ve cleaned it, I keep the water topped it, but it won’t shut off. Am very unhappy.

Worked great for 4 months, but now it makes a continuous loud noise. I’ve cleaned it, I keep the water topped it, but it won’t shut off. Am very unhappy.

Rated 1 out of 5 stars
By Amber on Aug 23, 2025

Save yourself the trouble

This is not a great system to use. Chewy was excellent with refunding me money because this product wasn’t that great and the wheels stopped working over half of

This is not a great system to use. Chewy was excellent with refunding me money because this product wasn’t that great and the wheels stopped working over half of the time and I only had it for a week

Rated 5 out of 5 stars
By Eileen on Oct 24, 2025

Easy to assemble.

So far, it has filtered the 20 gallon tank wonderfully. Very happy with it.

So far, it has filtered the 20 gallon tank wonderfully. Very happy with it.

Rated 1 out of 5 stars
By Becky on Jun 8, 2025

Not adjustable flow like and VERY loud

Bought for our axolotl tank and they DO NOT like high water flow or current in their tank. Bought this because it specifically said in people questions that it had

Bought for our axolotl tank and they DO NOT like high water flow or current in their tank. Bought this because it specifically said in people questions that it had an adjustable flow on it. The lever does absolutely nothing to slow the flow down and it’s SUPER loud. One of the bowels material was also ripped upon inspection before using it.

Rated 1 out of 5 stars
By Mark on Aug 17, 2025

Disappointed

Bought this on reputation but having nothing but problems. Bio Wheel looks like it’s warped and won’t turn . I don’t recommend.

Bought this on reputation but having nothing but problems. Bio Wheel looks like it’s warped and won’t turn . I don’t recommend.

Rated 5 out of 5 stars
By wmisu on Sep 10, 2025

Works great!

So, far have no issues! Took less than 8hrs to clear the tank and I mean crystal clear water!

So, far have no issues! Took less than 8hrs to clear the tank and I mean crystal clear water!

Rated 5 out of 5 stars
By Sandra on Nov 20, 2025

Size

How easy it was to put together. Starts up easy.

How easy it was to put together. Starts up easy.

Rated 5 out of 5 stars
By Katlyn on Sep 29, 2025

High quality

Great filter powerful water flow and it took not even 10 mins to put together

Great filter powerful water flow and it took not even 10 mins to put together