Magnum® Polishing Internal Canister Filter

Product No. ML90770
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The Marineland® Magnum® Polishing Internal Canister Filter uses two refillable chambers to house carbon or customizable filter media. The Magnum Polishing Internal Canister Filter is the most versatile filter Marineland has to offer. Choose from every day, continuous three stage filtration or high efficiency polishing with the included micron cartridge. The submerged motor means quick and easy start up, no priming necessary! The Marineland Magnum Polishing Internal Canister Filter filters 290 gallons per hour and is ideal for aquariums up to 97 gallons.

Is this suitable for a 10 gallon freshwater tank.?

Asked by: Straya9817
This would be too large, and would probably blow the fish right out of a ten gallon tank, unfortunately. :-) BREX
Answered by: BREX
Date published: 2017-08-01

I am planning to buy the internal canister filter and bring it to India. For the power supply, what voltage range does it support, 110V only? or do I need to use a step down voltage transformer in India, as India supports only 220V to 240V?

Asked by: Kishore Prasad
110V only. BREX
Answered by: BREX
Date published: 2017-07-31

Can this be mounted horizontal? Was going to use in my 30 gallon cray/shrimp tank. Thanks

Asked by: DiscusnRI
No, must be vertical. BREX
Answered by: BREX
Date published: 2017-09-05

Could I use this on its side?

Asked by: Jmattin52
No, it must be upright to work correctly. BREX
Answered by: BREX
Date published: 2017-08-18

The part that holds carbon completely broke when I was rinsing it and my O ring snapped in half as well. I was wondering if there are any replacement parts?

Asked by: Zoepug38
Yes, it takes the same media container and the same o ring as the HOT Magnum did. http://www.marineland.com/search.aspx?q=hot%20magnum#/?filter.brand=Marineland BREX
Answered by: BREX
Date published: 2017-07-18

How often should I change the carbon charcoal?

Asked by: Anonymous
Once a month at least. BREX
Answered by: BREX
Date published: 2017-07-18

Can I use it as a protein skimmer or any solutions for a planted tank with protein issues

Asked by: Chris0717
No it will not skim. Skimmers do not skim freshwater, they work in saltwater applications. For a protein issue, vacuum the gravel and do partial water changes. You might want to decrease feeding or increase filtration as well. BREX
Answered by: BREX
Date published: 2017-07-07

Hello!  I just started using the marineland-magnum polishing Internal canister filter yesterday. I Was wondering about removing the plug and putting anairline?  I did for the bubble effect,  the bubbles have stopped but the filter is still working well? 

Asked by: Kat50
This filter should be able to produce bubbles unless the venturi or the filter become clogged. BREX
Answered by: BREX
Date published: 2017-06-28

Hello, I currently have a FW setup with a Penguin 350 and this canister. I am planning on switching the tank to brackish water and wanted to know if the Polishing internal canister is compatible in brackish water. 

Asked by: chrisleon86
Yes, it certainly is! BREX
Answered by: BREX
Date published: 2017-08-08

I have had this filter for about 2 months now and the impeller has completely come apart! I love the filter but it is unusable currently. I have been unable to locate a replacement at this time. please advise. I'm not sure why it would of done this and if

Asked by: Rob jackson
Hi Rob, Most unusual, as we have not had anyone else with an impeller that came apart! You definitely have warranty on this item. We will reach out to you to assist you. BREX
Answered by: BREX
Date published: 2017-06-20

What is the plug for on the outp nozzle? 

Asked by: RobertR
The powerhead that comes with this unit is also sold separately as the Maxi Jet 1200 Pro powerhead. As a powerhead, you can attach a venturi to it. The plug closes that hole up, since a venturi is not necessary with this filter. BREX
Answered by: BREX
Date published: 2017-06-13

I have the internal polishing filter using diatom with it. What is the best procedure to clean the filter element and do you need to "recharge" it with more diatom after cleaning it?

Asked by: Fudsey
Basically, rinse it gently with cool water. And yes, you will need to add diatom powder each time. BREX
Answered by: BREX
Date published: 2017-06-13

Does this have a polishing cartilage like the H.O.B. model looks like fluted paper?

Asked by: cwafty
Yes, it includes the micron cartridge just like the H.O.B. canister, H.O.T. Magnum 250. BREX
Answered by: BREX
Date published: 2017-05-24

I am using the magnum polishing filter as a water polisher in a125 gallon fresh water tank. I have 2 eheim 2217 filters and a uv sterilizer. Filter works great but every 2 days it starts to rattle and the cartridge is dark brown. Is this normal?

Asked by: Azetbur65
Sounds like there is a lot that it is having to pull out of the tank which is why the cartridge is so brown. The rattling probably begins occurring due to the cartridge clogging, reducing the flow rate. Remove the impeller periodically and clean it as well. BREX
Answered by: BREX
Date published: 2017-05-10

Hello, Does the Filter need to be charged?

Asked by: Jimmybee
Hi Jimmybee, No, simply insert it and install the filter into the tank. BREX
Answered by: BREX
Date published: 2017-05-08

Is it normal that my filter turns off and then on? Is yes can i setup the timing for it to turn off

Asked by: EthanLee
Hi EthanLee, No, it would not be normal to turn off, then on. It should just run. Make sure there isn't an air stone near the filter that could be sending air bubbles up into the filter. Also, Take the filter out of the tank, take it apart, and remove the impeller from the powerhead for cleaning. It could have some debris interfering with it. BREX
Answered by: BREX
Date published: 2017-05-04

Whish to now if you send to Malta pls.. For the magnum pro

Asked by: Killiman
Sorry, but no, we sure don't! BREX
Answered by: BREX
Date published: 2017-04-19

I need the 2inch washer that go in Magnum Polishing Internal Filter Product ML90770 How can I get them.I have two Magnum need 6 washers.

Asked by: SteveW
Those are sold separtely: http://www.marineland.com/Products/aquarium-parts/Filtration-Products-and-Skimmers/HOT-Magnum-Parts/Exhaust-Gasket-for-HOT-Magnum-PC250.aspx BREX
Answered by: BREX
Date published: 2017-04-17

What size tubing fits the input/output on this filter?

Asked by: Tmunee
There is no input/output tubing for this filter. It pulls water in through the canister by way of a powerhead. The powerhead has an outlet diffuser on it, and does not require any tubing. BREX
Answered by: BREX
Date published: 2017-04-13

My mom has a 29 gallon tank. The magnum canister filter system for her tank full of molly fish?  She has seen it at work and she is impressed at how well it did. 

Asked by: CountryGirl
It would be a bit big for her tank in both overall size, taking up a lot of space, and in flow rate. The mollies may not be able to handle the flow. You can adjust the flow somewhat, with the diffuser, but it is very powerful. She might be able to use it for short periods of time as a polishing filter, but I am not sure the fish could handle it full time. BREX
Answered by: BREX
Date published: 2017-04-13

My filter did not come with the mounting bracket, how can I get one?

Asked by: BoyJohnny
You call us directly at 1-800-322-1266, but we will reach out to you directly via email. BREX
Answered by: BREX
Date published: 2017-04-05

I need parts inside for this this filter 

Asked by: ElvioMoncion
The carbon media container, filter floss, and gaskets are all the same as for the HOT Magnum. The power head is the same as the Maxijet 1200. Parts are available on the respective product pages, and in stores. http://www.marineland.com/search.aspx?q=hot%20magnum#/?filter.brand=Marineland and http://www.marineland.com/search.aspx?q=maxijet%201200#/?filter.brand=Marineland. They are also available on other sites, and in local stores. BREX
Answered by: BREX
Date published: 2017-03-29

Does the marineland 7 inch micron filter fit in the Magnum polishing internal canister filter?

Asked by: MLFava99
Yes, that is the same micron cartridge, actually. BREX
Answered by: BREX
Date published: 2017-03-20

what is the white filter for this? What model number.

Asked by: Giuseppewats9
PA11482 would be the item number for the polishing cloth. BREX
Answered by: BREX
Date published: 2017-03-16

what micron filter do i need for replacement on this?

Asked by: Giuseppewats9
It takes the same micron cartridge as our old Magnum filters, PA0115. We are currently out of stock on this here, but it is available at many online vendors as well as local fish and pet stores. Try www.petmountain.com, www.drsfostersmith.com, www.amazon.com, www.thatpetplace.com. BREX
Answered by: BREX
Date published: 2017-03-15

How much ? What size tank?

Asked by: Graveyard
We do not sell directly, and is for tanks from 45 to 90 gallons in size. BREX
Answered by: BREX
Date published: 2017-03-09

This filter is for aquarium freshwater or only for salt water

Asked by: Betox
It works just fine with either one. BREX
Answered by: BREX
Date published: 2017-03-09

what are the dimensions?

Asked by: halr
10.75"X13.38"X17.25"h BREX
Answered by: BREX
Date published: 2017-03-07

Thank you  so much that will work for me OK....Now I have been  to 4 big als stors and they don't have them in Stock where can I go to get one ??

Asked by: Buzzbee
Scroll to the bottom of any page on our site and click on the "Buying Options" tab then enter your postal code into the dealer locator. You can also order one via Big Als' website or some other website such as www.thatpetplace.com. BREX
Answered by: BREX
Date published: 2017-03-09

I live off grid I. Have a 75gl I would like to try this out in my tank what is the voltage of it use ?????

Asked by: Buzzbee
Buzzbee, The Magnum Polishing Internal is rated at 120VAC 60Hz, and 0.38 Amps. Thank you, Christina
Answered by: MINI
Date published: 2017-03-02
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ML90770 - 97gal/290 GPH