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

I won't be going with this brand again. It ran ok for a few months, then it just stopped working completely. Won't even turn on again. The bio wheels are just a gimmick, they don't even turn after awhile. I like adding my own media, but it over flows easily making it difficult to maintain. If you try to put foam or a sponge over the intake it won't suck water through which makes it hard to keep sand or larger particles out of the impeller. Basically, it's just not the best design...

Been using these filters for a long time. Work very well for this type of filter. Last a long time. Chewy has replacement filters for the Emperor 400 and both are reasonably priced.

Yes, I love it. I have one of the older models and I like it very much. The price was right and it fits right onto my aquarium...This filter does a good job at doing it's job. The only thing, maybe, is that my silly smaller fish get sucked up onto the filter and if I don't see them in time, they pass away. This filter is that powerful and I highly recommend it.....

It arrived with missing parts cannot assemble. I like chewy unfortunately not all parts arrived so I can't assemble it it's missing main filter tube

This is my second marineland filter in 23 years. I only purchased a new one because the impeller takes too long to seat after cleaning. The rubber end is not pliable enough to seat quickly after 23 years. I love this product and Chewy is a wonderful company to do business with, I highly recommend ordering from Chewy, their customer service is superior to other online companies.

I had an aquarium emergency yesterday morning as I noticed my largest filter had died on me! With a densely stocked African peacock cichlid Tank, you need filtration working excellent or your in for trouble fast. I decided to try chewy for the first time as I had a discount coupon. I can say I’m seriously impressed with the quality of the new filter, the price and the super fast shipping! The filter arrived the next day and I am so relieved! Thank you!!

I was very excited when I got these but it quickly fell short. Time consuming to put together and take a part to clean every time. Motor is silent but every time the power goes out or you unplug to clean it can take 15 minutes of priming go get it going again. Every time I got it going again it barely put out any water. After messing with it for about 20 minutes each time I finally got it to normal flow. Great concept but poor performance. Water has to be directly up to the bottom of the outputs or it sounds like you have a waterfall in your home. Very annoying. Spray bars gets slowed down to a trickle a lot. Not worth 50 bucks. Go with another brand cause there is better quality out there. After I was very excited when I got these but it quickly fell short. Time consuming to put together and take a part to clean every time. Motor is silent but every time the power goes out or you unplug to clean it can take 15 minutes of priming go get it going again. Every time I got it going again it barely put out any water. After messing with it for about 20 minutes each time I finally got it to normal flow. Great concept but poor performance. Water has to be directly up to the bottom of the outputs or it sounds like you have a waterfall in your home. Very annoying. Spray bars gets slowed down to a trickle a lot. Not worth 50 bucks. Go with another brand cause there is better quality out there. After a month I took it down and replaced it with 2 fluval C4s. So happy I got rid of it! … more

Having large aquariums with turtles (and large fish to help them clean up the mess they make when eating) creates a mess. They require constant filtration and water changes. Lesser filters have impellers die constantly under the stress of turtles, as they eat messily and their poop is even worse. Having turtles as pets for over 30 years and trying countless filters, I must say that this is the longest-running filter I have ever owned. I bought one around 8-9 years ago, and only needed to replace the impeller once. Most filters die after 1-2 years under the strain. Got a new impeller and it rocked like new. Buying a 2nd one, as every time I go cheap and buy something else, I regret it after Having large aquariums with turtles (and large fish to help them clean up the mess they make when eating) creates a mess. They require constant filtration and water changes. Lesser filters have impellers die constantly under the stress of turtles, as they eat messily and their poop is even worse. Having turtles as pets for over 30 years and trying countless filters, I must say that this is the longest-running filter I have ever owned. I bought one around 8-9 years ago, and only needed to replace the impeller once. Most filters die after 1-2 years under the strain. Got a new impeller and it rocked like new. Buying a 2nd one, as every time I go cheap and buy something else, I regret it after 3-18 months when the impeller breaks and costs as much as the entire filter to replace. Had enough of that. And I see a few people upset that it's too big. Then smaller filters -- the ones I complain about being too weak and break too easily -- were made for you. This is a powerful, durable, heavy-duty filter for big aquariums that require a lot of filtration. … more

Completely stopped working after a few months. Does not pump water like it should for being used in a 65 gallon tank. It did work good for the first 2 months but then it stopped.

We used 2 other filter systems before buying this one and it did the trick for us! Crystal clear water.