Great at making your tank crystal clear! Make sure you put it at the last stage of your filter though!! Works great in my Fluval 207 for my 29 gallon

made my tank water crystal clear in just 2 days. the pictures are before and after

I LOVE THIS STUFF!! If you are stuck and don't know what to buy after getting driftwood or putting a cloudy substrate in, this is the stuff you need. It takes all tannins out of the water and helps keep it clear. I have used it twice for two different projects in a current tank and it works great. Just look at the difference it makes in a day in my photos.

Fantastic product that keeps my aquarium water crystal clear! And it's rechargeable and reusable!

I bought this about 3 weeks ago and am very glad I did.

I've had my tank for over a year and always dealt with colored water. The wood was constantly leaching color even though it was prepped for the tank and even when water was refreshed it would still be discolored a few days after. I added this into our filter system and even within that night the water was noticeably better. I'm at three days in and the water is still crystal clear like the tank was just put together. Super impressed with how well this worked for something I was trying to get figured out for a long time

My tank water looked so dark after I placed wood into it. I thought spoiling the wood for many hours would help with water discoloration but I was wrong, even active carbon could not help. After doing research and I found this seachem product. Wow.. I washed it for a couple times with tap water then placed it inside my filter. When I woke up in the morning, I was totally surprised. Picture attached is when I took it the next day.

I bought this due to a very cloudy and brown tank and within a day my whole tank cleared and the tannins in the water disappeared 100% recommend this if you have tan or brown water from tannins