MARINELAND Bio-Wheel Emperor 400 Aquarium Power Filter, 80-gal -

Marineland Bio-Wheel Emperor 400 Aquarium Power Filter, 80-gal

By Marineland
Rated 4.2411 out of 5 stars

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$63.58Chewy Price
$108.39Chewy Price

In Stock
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About This Item


  • Offers complete three-stage filtration (mechanical, biological, chemical) for both freshwater and saltwater tanks.
  • Filter cartridge traps debris and removes odors and discoloration, providing mechanical as well as chemical filtration.
  • An extra-large BIO-Wheel rotates to cultivate the beneficial bacteria that remove toxic ammonia and nitrates from the water.
  • The Bio-Wheel Emperor filters 400 gallons per hour for aquariums up to 80 gallons and almost twice the filter cartridge capacity of comparable models.
  • Features a dual-impeller design and efficient flow, this powerful filter contributes to a healthier environment for your fish.

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Compatible Products

Keep your system working smoothly with Marineland filter cartridges.

Questions & Answers

25 Customer Questions

How long is the tube that goes into the tank.? Can it be extended if needed? It also sounds like it does not come with all the filters.
Answer by ChewyDec 11, 2017
The tube is approximately 7 inches long and be can extended. This product comes with a filter cartridge.

how much clearness do you need between the tank and wall
Answer by ChewyFeb 05, 2018
The overall dimensions of the Emperor 400 are 17 x 7 x 10.5 inches and the dimensions for the area outside the tank are 17 x 4.5 x 10.5 inches. You would need at least 3 inches but we recommend 4 inches just to make sure there is enough room to remove the filter for cleaning

Can all kind of media be used with the 80 gallon filter ? Like bio balls and carbon ?
Answer by ChewyJan 23, 2020
This Filter uses the Marineland Bio-Wheel Emperor Rite-Size E Filter Cartridge.

How long is the filter?
Answer by ChewyAug 16, 2018
This filter is 17 inches long.

ReviewsWrite a Review

Rated 4.2411 out of 5 stars
141 Ratings
Would recommend to a friend

141 Customer Reviews

Rated 4 out of 5 stars
By Lenzie on May 21, 2023

Amazing filter

This filter does an outstanding job. Was very easy to put together, is quiet and was a great price. My neighbor bought two. The only reason i gave four stars and not five is I think the lids could be a little more put together somehow and such a thin piece of plastic. My next tank will have the same filters. I bought two for my 75 gallon.

Rated 5 out of 5 stars
By Cathy on Mar 31, 2023

The best fish filter

Love this filter, you can put sponges in it for more filtering, plus other items that help your fish . And Chewy is the best.

Rated 1 out of 5 stars
By Violet on Dec 6, 2022

Stops working

I have bought TWO of these filters, the same exact one because I thought maybe I messed up the first one when I cleaned it so I bought the second one for parts, only for it to make weird noises and stop working too. I only had them both within two months.

Rated 5 out of 5 stars
By Honormedal on Nov 10, 2022

Working Great!

After using an external Eheim for 20 years, I switched to this Marineland and after three months it is doing an excellent job. I really like the internal snap filter to add my old eheim biofilter.

Rated 5 out of 5 stars
By Florida on Oct 16, 2022

Works awesome

I put 2 of these on a 150-gallon tank 3 weeks ago. I put charcoal in one and ammonia-neutralizing crystals in the other. I just tested my water and I have no ammonia or nitrites. Before I had a sand filter and had to change the water every almost other week.

Rated 1 out of 5 stars
By Turtlemom on Aug 14, 2022

there are problems

The filtering is great but our first one arrived with a hairline crack that resulted in an overnight flood on our floor. Chewy customer service is wonderful and they sent us a new one really fast. We had the new one for two months and the motor stopped working :/

Rated 5 out of 5 stars
By Frank on Dec 4, 2022

current review

Very good! Timely fashion once again.Great to have once again.

Rated 2 out of 5 stars
By doggy1 on Oct 22, 2022

It works but it's loud

It does clean but it is loud!! I can hear it in the next room and it drives me crazy

Rated 5 out of 5 stars
By Evette on Nov 9, 2022

This is the perfect one for my fish

I love everthing about this my fish tank is so clean i love it .

Rated 3 out of 5 stars
By BunnyRabbit on Jun 12, 2022

Noise is a factor

As with reviews on the noise, it does become problematic. I turned it off, put new filters even, and cleaned the rollers, but still noisy after a few months of use. I think my Jack Dempsey's, Gold Fish and Plescos are even more stressed with the noise now as they are restless!