WDEFUN Aquarium Filter Media, 300 ml 2 Packs with Free Mesh Bag Organic Filtration Resin, Remove Driftwood Tannins Suitable for Freshwater and Saltwater Fish Tank

I placed this in the filter of my fish tank and I can’t remember, but I believe it took like three days for it to clear my water before you can’t tell, but my water was a tea color because of the Driftwood in my tank. Have clear water now. Comes in a plastic jar with a lid and two different units come in the star. I have a 36-gallon tank so I removed with gloves removed half of the product out of one of the bags and placed that bag inside of my filter. I love the idea that you can recharge it I haven’t tried that yet since I just got it. The black bag you see in my tank is something completely different for cycling purposes only. Great quality it wouldn’t fit in my filter unless I took some of the product out and placed it in the jar. Great price compared to other products similar. This is the first time I’ve used anything like this and I’m pretty happy. It hasn’t messed with my water quality either.

Why did you pick this product vs others?: I don't know or understand how these pouches work, but they are magic. Absolutely astonishing that, in less than 24 hours, they can clear my water where I've failed to using traditional methods. My driftwood was boiled for hours before adding it to the tank. Weekly water changes still could not keep up with the tannins still being released. I pulled the driftwood and boiled them for another 6 hrs, changing my stock pot water every hour. Still more tannins. I decided to try something else & the reviews on this sounded promising. Within minutes of inserting these pouches into my filtration, I could see a top layer of clear water. When I returned home from work late that night, my tank was mostly clear but a little hazy & I was concerned. By morning, the water was beautiful (18 hours). The parameters were perfect. My plants & fish are thriving and I've even discovered baby hillstream loaches (they were not noticable in the tinted waters)! The instructions were no good & I disposed of the pouches after use (soaking in a bleach water solution did not sound safe to me) but I wouldn't hesitate to buy this again if needed.

Does what it says! This works the same as purigen. It's resin, so you can take the packet out to bleach and clean and reuse. I got it in the mail Monday night, and tank is clear today (less than 48 hours). I'm running an fx4 on a 55 gal (OVERKILL) with 10 cichlids, a clown loach, bright plant light, and tons of hornwort, so the filter keeps up nicely but tannins were getting annoying (I want my blue cichlids to appear blue). If you're familiar w fx4, it has a lot of great different filter media, but won't remove all the trains without help (obviously some people want a good tannin tank) I was too lazy to disconnect my FX4, so I parked the packet by the filter outlet. Made a brief dust cloud, should have rinsed it first. It probably would have worked even faster if I'd put it in the filter like I should.

It works just as well as Purigen. I used to have purigen in all of my tanks, with a little plastic bin I used to recharge it one it got filled. It worked okay but it was a lot of hassle and bleach going around. This product not only works just as well, but it's cheaper, and it already comes in a bag, unlike purigen that you have to buy a bag separately for way too much money. I've got 2 of these in the last chamber of my FX6 in a 75 Gallon and the water looks crystal clear, will definitely be ordering these more.

Works just as well as Seachem Purigen! I have a Malaysian driftwood centerpiece in my 10gal that leaches so many tannins and this keeps my aquarium very clear. Once it is in your filter you cannot smell it, and it has not affected my water parameters, all my fish have remained healthy. it took a couple weeks for the media to start turning brown, and itss still functioning and keeping my water clear despite looking like it is ready to be thrown out.

This cleared up my 22g in ONE day. I am beyond impressed. Works just as well as purigen. It is extremely easy to use. I just rinsed them in tap water and put them in my filters( i have two hang on the back filters).

What's to say? It works like Purigen. It's 6 times the quantity of Purigen at 1/4 the cost. Normally a bag of 100ml Purigen costs about $10 for 100ml. With this you are paying $16 for 600ml! Update: (Has gone up to $18 now.) Now one difference is that it comes in 2 of 300 ml bags which can be hard to fit in smaller filters. But buy a few fine opening, reusable filter bags for cheap and empty some of this packet into those and you've got the equivalent of 6 100ml bags of Purigen. If you have larger filters, you can stop purchasing multiple bags as each one of these reusable bags is three times the size of a single Purigen packet and you get two of them! I love Purigen and it's ability to fine clean my tank water to crystal clarity. But what I've always hated about it was the very high cost of it. This product is so much cheaper then Seachem charges for Purigen and far more useable quantities with zippered bags! I have been using this for over two months now in my 3 aquariums and it has worked just like Purigen and as well! I have recharged this product as I did Purigen. It is rechargeable with bleach soaking and then anti-chlorine dosing. (Prime is the Seachem product for anti-chlorine) and standard chlorine bleach will do. It does seem to take about two full days (instead of Purigen's one day) for the ammonia soak to clean them out as they have more material in each bag. And then a day of heavy Prime dosing finishes it. Have recharged some of these 3 times so far. Each time they are recharged, they perform a little less and stay a little browner just like with Purigen. And unlike Purigen, you get reusable, zippered bags that you can reuse over and over and so you can split some of the quantity into smaller bags for smaller filters. I have already reordered some of this and will likely continue to do so if it continues to be available at the current quantities and cost. As good as Purigen and a lot cheaper!

I’ve now recommended this to all of my friends that have tanks! My water has literally NEVER been this clear!