Deal for all you aquarium lovers out there! Seachem Purigen is considered to be a great carbon alternative, or some use both. Bottom line is that it will turn your water crystal clear. Oh, and it's reusable if you follow some simple steps to recharge it.
It's an Amazon Add-on item [amazon.com]
so you'll either have to buy at least $25 or if you have an Alexa-enabled device you should be able to get around that. I was able to order it through my Echo by saying "Alexa, order Seachem 100 milliliters" and it came back as the top search result.