Marineland Cartridge Media Refill for Penguin 200/350 Filter

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 of rite size cartridges cost) is enough. My biowheels are spinning like when the filter was new, I'm saving money and my tank is cleaner than ever. Why oh why didn't I buy this product years ago! This was the best and smartest aquarium purchase I've made! They should sell these in more pet stores and I don't think it's a mistake that they don't because in saving you hundreds, they cost stores that much!

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.

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

Mucho ahorro en filtros

Great item works perfectly in the filter and provides excellent Clearwater and conditions