MarineLand Penguin Refillable Filter Cartridge - Easy to Replace and Clean for Cleaner Aquarium Water.

AronAron: When I found theses I was so happy. As far as I know this is the only brand that makes these instead of having to buy the expensive filters every month. Initial cost is a bit but when compared to filters it’s a no brainer. They fit perfect in any penguin filter. I have the small one and also the largest one. I fill them with carbon and ammonia removing stone and also some bio substrate on the top part. Inside it is broken into sections about every cm so you can space things out and all your carbon etc won’t just sink to the bottom so this offers good coverage. Again I love these things, I’ve had them for years now and no issues. I put filter sponge infront of these as you can see in the pictures. And this also makes it easy to just take the filter out and wash it and leave the carbon etc in longer since it normally lasts longer then the sponge will. Has saved me hundred of dollars.

Canada on May 10, 2023

Virginia Crawford: I keep extra media in this and it's easy to move to another tank for cycling. I cut strips of sponge to put in the one I'm using to help cycle my new 20 gallon. I plan to put Filter rings in it for my cycled tank once I'm done. I find it fits well and keeps media in place.

Canada on Mar 14, 2023

GypsyGypsy: The media could not be loaded.  I have a Marineland Penguin Biowheel 200. These fit perfectly and work great with various traditional and ceramic filter media...as you can see from the pictures, I used 2 different types of ceramic media as well as the traditional bio-sponge sheets behind the 2 cartridges. Easy to fill, snap shut and super easy to install. Also very easy to clean. This feels like a much more economical way to go that the traditional disposable filters, which can be a bit pricey. After a week, they are working well and my 33 gal tank is clear. Very happy with this product.

United States on Feb 21, 2023

Xeteco: I was not sure how close this was to the 150 so I bought one to see.
This unit is about 1 inch too big to fit the 150 (Penguin or Aquatech models)
They do not make one for the 150.
Using a zippered net bag for now.
Other than size I think this will work well in the 200 unit.
I ordered a 200 Penguin unit so I can use this.
If you are worried about too much flow in your tank just buffer the output so it breaks up and is not a jet or water. Get creative on that ;)

United States on Nov 19, 2022

brian: I only low rated value because somebody got the reusable reloadable charcoal cartridge and the media cartridge backwards when listing it. Why should I have to by a min of 2 pigs with 2 units each or subscribe for a designed to be cleaned and refilled well built unit... But the media filters can be bought as desired .. Duhhhhh. Otherwise its a solid value unit. Even being forced to buy basically a quad order. Pro tip don't buy replacement media cartridges for your penguin. Just turn the spare reloadable cartridge into a media filter that you can toss the insert away. Scotchbrite pads are great for this.

United States on Mar 10, 2022

Amazon Customer: Les cartouches qu'on vend pour le filtreur Penguin coûtent cher, et contiennent du charbon dont je n'ai pas besoin. Dans ce réceptacle, je peux mettre un produit filtrant de mon choix pour une fraction du coût.

Canada on Feb 27, 2022

carlos g.: Súper te ahorras estar comprando a cada rato los repuestos con fibra y carbón activo tu le agregas el material filtrante que gustes súper práctico una excelente compra

Mexico on Oct 20, 2021

Wu: It’s a perfect alternative for the regular costly cartridges. Works like a disposable one and it’s cheaper. Loved it.

Canada on Apr 25, 2021

Terry DTerry D: I saw these and thought they'd be made out of that crappy black plastic that you find on cheaply produced dollar store baskets and strainers. I still ordered them, figuring regardless of that they would still work. I was pleasantly surprised to find that they're made of a very sturdy plastic. I dropped one on my kitchen floor thinking it would shatter but it didn't. I only needed one as I only had one spot in a filter that I was going to use it, but it required me to order 2. I figured I'd have a backup. Crazy thing is, I've found that because of how sturdy it is, and the fact that its got the holes in it, I ended up using it to put my coffee mug on!! It stops my mug from discoloring my wood furniture, and any coffee ring just stays on the plastic and its super easy to rinse off! I realized that if I put a piece of thin plastic inside of it, I was also able to use it for cold drinks! The condensation drips onto the plastic, the raised vented part keeps the cold away from the table. I know, I'm nuts right? But is it great for the charcoal? Absolutely! And apparently its the best thermal protective/water protective coaster I've ever had on top of that! I'm actually going to order...

United States on Dec 17, 2020

JasonKohl: I was on the verge of throwing away my marineland 350b filter. I hated to do it since although it's not my preferred brand, I do like the small fitler intake compared to the huge flow and of course, I didn't want to throw away all the beneficial bacteria on the biowheels. Not only does this product save you money by not having to buy the ridiculous expensive rite size A cartridges every few weeks, it corrects what is in my opinion the major flaw of this system - lack of flow through the blue filter pads. If you have a planted tank or any tank with a lot of gunk in it, that gunk easily clogs the blue filter pads. My biowheels would stop spinning every day, I would have to take out the blue pads, rinse them back and front, every darn day! It was driving me insane. However, with this product, the flow through the plastic on both sides is much better. I use quilt batting and charcoal. Not only can I add much more charcoal than the pads (my tank has never been so crystal clear), but if I decide I don't want to use charcoal any more for meds or because I'm putting purigen in the other filter on the tank, the quilt batting (you can get a years supply for about what the price of a 6 pack...

United States on Oct 11, 2014