Seachem Cuprisorb 100ml...

This worked great for getting the copper out of my tank after a medicine treatment. I just sticker by the intake of my filter and the tank was reading 0ppm in no time. I left it in for a couple extra weeks to be sure. It's been a few months after finally removing it and I just did a whole tank reset, stirring up quite a bit of gravel as I planted new plants. Just out of curiosity I tested for copper and it still ready 0ppm! Easy to dry out too, I just set it on my patio table outside for a few days, turning it over every day. Great to have on hand if we need to dose with copper containing meds again.

Works very fast. Make sure you rinse it well before you add to your tank.

I first used cuprisorb years ago for a marine tank, kept it in till the bag wore out, marine life, specially my cleaner shrimp thrived. a few years of back to back storms decimated my tank and I converted it to fresh. some how I got some copper in the water system, this took care of it. I have it in a safe moist spot now, as my fresh plants need some of the minerals it will remove beside copper. Unless you have a lot of copper/metal I can't see how the bag would ever need a recharge, it works and works, and frankly, I would just replace it as there are noxious chemicals in the recharge recipe/procedure The newer bag, is thinner and had better water flow, a better design than what I knew years ago, was happy with the new bag, and the stuff inside

seems to be working, but a good bit slower process than i hoped.

Effective product for removing copper in an aquatic system. A year ago, I treated a small tank with copper. I have a small tank that uses the eLive Duo Filter. For more information on that filter, please follow the product link on ZeeBooth Elive Aqua-Duo Dual Purpose Aquarium Filter . Snails got accidentally introduced to the tank when I added plants. To get rid of the snails, I used Cupramine. I got rid of the snails but now the sand in the tank and the expanded clay media in the Duo Filter are contaminated with copper. This is no problem as long as you don't want to keep shrimp and clams. A year later, I decided to try keeping freshwater clams. First step, remove the copper. I put one small bag of cuprisorb in the filter and let it run for three weeks. The water is testing zero amounts of copper after three weeks. I did not think copper can be removed from this system due to the expanded clay media in the Duo Filter. But it worked. This product is effective. Highly recommended.