Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack

I have a Fluval 304 filter on a 50-gallon freshwater aquarium, and I've been using these foam filters for years. I LOVE the Fluval filter... it's worked consistently and wonderfully for me for quite some time and I've not found any other filter that I've experienced or think would work as well. The Fluval 304 has 4 filtration stages, the first of which is these foam filter blocks. BEWARE... the are sold in packages of two, but the 304 (and 305) filters require FOUR of these blocks. In other words, if you want to completely replace the foam filtration stage, you have to get TWO packages. That being said, the filter works great for me and my aquarium needs only occasional maintenance. I know that there are knock-off products out there, and I've tried some in the past, but the quality of the material hasn't been the same in the ones I've tried. Since the key to making the Fluval filter work is to ensure that the water passes through each filtration stage, it's important that this foam filter block fit properly and maintain its shape. I've had other knock-off products that lose their shape, which disrupts the function of the filter. To me, it's worth it to spend a few bucks more and ensure that the filter works as intended.

Exact fit easy to install.

This Fluval Foam will last for a very long time; some of my Fluval foam is nearly a year old and not falling apart. The foam works great for keeping a colony of beneficial bacteria. I just rinse by swishing in de-chlorinated water every month or so. Each canister needs 4 blocks. I keep extra on hand. When one falls apart I replace it. But I leave them in as long as possible because I don't want to screw up a cycled tank. This foam goes in a canister Fluval 406 External Filter which I use for the sole purpose of growing good bacteria. This setup keeps 6 large fish healthy with consistent zero ammonia and nitrites. Bottom rack: Biofoam blocks Side panels - this product 1st rack Fluval Biomax Bio Rings - 500 grams/17.63 ounces 2nd and 3rd racks Matrix, 2 L / 67.6 oz. I also use a HOB Aqueon 06079 QuietFlow 55/75 Power Filter, 400-GPH to clean the water. I like the Aqueon above all others for getting water clean, you can't beat it! I insert cut pieces of Morning Glory Queen/King Low Loft Batting, 110-Inch by 110-Inch (bought at Walmart) into the Aqueon - replacing the batting when it gets dirty, at least once a week. It's more economical than buying the Aqueon filter replacements.

I own two very large, red-earred sliders, and out of all the pets I've owned, cleaning after them is a nightmare. I use a Fluval model 205 external filter, and these foam blocks fit well and do their job, though I need four of them at a time. Here on Amazon, they are dirt cheap in comparison to what big retail stores such as Petco would sell them. With the Fluval Foam Filter Block, your tank will stay clean for about a month before you have to swap foam blocks. I highly recommend buying them here instead at retail stores.

It is a good product. My tank is cleaner and I don't have to change the water as often.

I changed my filters with this filter from originally what i got from the Fluval 206 package. Well... it is ok, but it is not same as what I had with the original package. it is thinner and does not feel same as original. Anyways... it could be only my thoughts. At least it works fine for months.

Good no problems

Not much to say. This is the standard brand name filter replacement for 200/300 Fluval canister filter. These slap right in and you don't have to worry about cutting your own filter out of a big block. They last a decent amount of time. Fluval says to only replace them every 6 months. Make sure you don't replace all of them at the same time though because they hold beneficial bacteria for your tank. Luckily they are just cheap enough that I don't feel ripped off buying them, unlike many replacement filters. If they were any more expensive though, it would be a lot cheaper to buy foam filter in bulk and cut it to size. The plus, is that these make doing fishy maintenance only take 10-15 min, and another 10 for a water change.

fonksiyonu mükemmel

Meu filtro era menor, cortei pra caber e deu certo! Funcionando muito bem.

Great product. Been using this brand for several years and it’s never let me down. I’ve been maintaining aquariums for many years and proper filtration is paramount for healthy fish. Fluval is my go to product for all my aquarium needs. AAA+ Definitely recommend.

Parfait comme d'habitude

Item as described. I’m using it for my Fluval 207 external filter.