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Marineland Millennium
Reviews Views Date of last review
2 105452 11/3/2005
Recommended By Average Price Average Rating
100% of reviewers $30.00 9.0


Description: OK, everyone has heard of Marineland's breakthrough with the BIO-WHEEL filters. Many people use this type of filte for fresh water and marine applications.

Just when we thought it couldn't get any better Marineland has out done themselves once again with the Millennium series filters.

The BioWheel filters worked by passing water over a wheel that spun. The idea behind this is to get nitrifying bacteria to grow on the wheel and the reason the wheel would spin is to get important oxygen to the bacteria to promote growth. And everyone has experience the dreaded stuck bio wheel and we have to go out and buy another or try to fix the one we have.

Well all of these moving parts are gone in the Millennium Series filters. Instead of the coveted "BIOWHEEL" Marineland developed the "BIOGRID" system. All it is, is a plastic piece that slides into the filter fully submerged except for handles used to pull out the BIOGRID. The Biogrid has hundreds of "fins" for the bacteria to grow on and they way these fins are situated makes sure that water runs over the entire BIOGRID and not leaving any dead spots.

How it all works:
The water is drawn up the pick-up tube and is passed over the BIOGRID where nitrifying bacteria grow there is also a flip up air intake to allow air to pass over the biogrid, this is Biological Filtration. When the water passes the grid it then meets one of Marineland's Black Diamond Filters. The filter media is very fine and filters out any debris the filter picks up, mechanical filtration. When the water passes through the filter it also passes through a wall of Marineland's famous Black Diamond activated carbon and this is Chemical Filtration.

The Millennium is avaliable in many capacities from 85 GPH to 280 gph. They make two filters with 85 GPH one includes the BioGrid and one doesn't.

Good filtration for aquariums up to 140 gallons with a single filter.
Keywords: filter marineland millennium filters carbon
Aquarium Advice Newbie
Posts: 1
Registered: January 2004
Location: Tampa, Florida

Aquarium Advice Newbie

Registered: May 2005
Location: Illinois
Posts: 2
Review Date: 1/8/2005 Would you recommend the product? Yes | Price you paid?: $29.99 | Rating: 0 

Pros: works well, big chamber for filter media
Cons: venturi seems like it may break easily

marineland too their small, reliable pengiun and made a beautiful, smoky-colored transparent Millenium filter series. we use the milenium 2000 full of CPR biobale on our 10 gallon nano. we just clean it OFTEN. works WELL. the filter seems reliable. what more can i say?
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Aquarium Advice Newbie

Registered: July 2005
Location: Milwaukee WI
Posts: 1
Review Date: 11/3/2005 Would you recommend the product? Yes | Price you paid?: $30.00 | Rating: 9 

Pros: Great filtration, silent operation, shut off valves
Cons: Not one problem yet!

This is a very good filter- I purchased this for my 20 gallon fw tank that is heavily stocked with live plants and fish. I have gone through 4 filters, Marineland 200, Rena XP1, Tetratec model and an Eheim Ecco, before I purchased this one.
This is the best power filter I have come across. It is superior to the Bio wheel since the Millenium uses a bio grid inside the filter itself to colonize bacteria that break down the wastes of the aquarium. The advantage of this is that it never stops- unlike the bio wheel, which has a tendency to stop moving, thus killing the nitrifying bacteria.
After the aquarium water hits the bio grid, it is filtered by the foam and then by carbon before returing to your tank. Thus, the water comes out very clear- no odors whatsoever.
The Millenium 300 is a very affordable filter for its price and sterling quality it returns to your pets.
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