Help keep your finned friends’ home in tip-top shape with Marineland’s Magnum Polishing Internal Filter. This versatile filter allows you to pick between everyday continuous three-stage filtration or high-efficiency micron water polishing. It’s specially designed to filter aquariums that can hold up to 97 gallons and it can filter 290 gallons of water per hour! And for a quick and easy startup, it features a self-priming, submerged motor. This internal filter also has dual chamber, refillable media chambers that hold carbon or customizable filter media and comes with Marineland’s Black Diamond Premium Activated Carbon and a Marineland Rite-Size JH Floss Sleeve.
The submerged motor allows for quick and easy startup.
The two refillable chambers can hold carbon or your filter media of choice.
Choose between continuous three-stage filtration or high-efficiency polishing with the included micron cartridge for aquariums up to 97 gallons.
Can filter 290 gallons of water per hour.
Comes with Marineland’s Black Diamond Premium Activated Carbon and a Marineland Rite-Size JH Floss Sleeve.
It worked great when it actually worked. Unfortunately we sent the first one back before 30 days and Chewy replaced with new. The second one only worked for about 60 days. The piston comes loose and it makes a loud rattling noise. We tried to reach manufacturer but it was impossible to get through. We were really happy with it at first with the product because it really cleared up the tank but ......it just didn’t last.
Shoots out billions of tiny bubbles.
on Apr 15, 2021
Ran good for one day, and then it starts shooting bubbles. The filter is 2 or 3 inches below the surface so its not sucking in air. I bought this from Chewy and I don't blame them, it's flaw in the product.
Good price for turtle tank
on Jan 29, 2021
I use this in a 50 gallon tank for my African side neck. The fabric filter works great however, turtles require massive filtration and the filter needs to be changed every 3 days. I use the charcoal filter and sleeves. Much more affordable. For the price and the job it does its very much worth it. Chewy has the best price by 50% versus other places I've checked. VERY important to not let the motor sit out of the water.
Outstanding water clarity
on Apr 11, 2021
Omg what a difference in my water clarity... my goldfish tank has been cloudy for ages bought this and within hours the change was amazing.....Thank You!!!
on Feb 1, 2021
This is a amazing product. My water was so perfect after about 12 hours... I had done some serious rearraigning in my 75gal tank. Water looked terrible afterwards.. The Polishing Filter Worked Great. The added bonus is if your filter goes down, throw some carbon or media or sponges in and it will work to keep things going so you don't lose your fish. I'm glad to have this on-hand...
on Mar 18, 2021
I bought this for my koi, a single koi with 6 small companion goldfish. It started making this horrible noise. The sleeve doesn't last long. Regretting this purchase!
75 gal aquarium
on Dec 29, 2020
My HOT Magnum lasted 20 yrs. I called Marineland to find it was no longer made. I asked for recommendation of comparable filter . This filter was suggested. It has done a great job. My water is crystal clear with the polishing filter. I run this along with my other HOT Magnum with the carbon.
Very happy. I wasn't sure about an internal filter, never had one. I'm impressed. And Chewy price can't be beat !!
I SO wanted this to work..
on Dec 1, 2020
Bought this for our 90G tank to replace a DIY canister filter we were tired of messing with. Worked GREAT for the first two days.... our tank has two fish, a 11” Oscar and a 13” pleco. That’s it. Within 48 hours the filter (not the polishing one) is completely full and water flow is almost nothing. It’s an entire process to have to get it apart and clean it. Plus you really can’t go more than 4 times cleaning the filter floss sleeve before having to replace it, and good luck finding them at your LFS. I was hoping this would be a good alternative to purchasing an expensive canister filter, and being “in tank” helps alleviate any possible flooding mishaps. But the constant CONSTANT cleaning thatBought this for our 90G tank to replace a DIY canister filter we were tired of messing with. Worked GREAT for the first two days.... our tank has two fish, a 11” Oscar and a 13” pleco. That’s it. Within 48 hours the filter (not the polishing one) is completely full and water flow is almost nothing. It’s an entire process to have to get it apart and clean it. Plus you really can’t go more than 4 times cleaning the filter floss sleeve before having to replace it, and good luck finding them at your LFS. I was hoping this would be a good alternative to purchasing an expensive canister filter, and being “in tank” helps alleviate any possible flooding mishaps. But the constant CONSTANT cleaning that has to be done is ridiculous. I’ve tried both the floss sleeve and the polishing filter. Might as well have no filter and just do a full clean every other day since that’s what you have to do with this thing. If I’m doing something wrong I’d love to know! Bc I SO wanted this to work.… more
on Feb 3, 2021
Bought this canister pump back in December and it was shipped on the 28th.
It started making a strange noise yesterday and now it completely stopped working.
You would think it would last longer than 5 weeks.
I like this a lot
on Feb 28, 2021
Great filter would buy again for all my tanks but it Upsets me they raised the price by 20 when i last got one but its alright