if it works for you, and your fish are always happy, healthy, and growing, keep using the carbon. especially if you can get it at such a good price.
just keep up with changing it, since alot of people say it will leach what it removes back in once its used up. if its working, the carbon will only help your aquarium
just keep up with changing it, since alot of people say it will leach what it removes back in once its used up. if its working, the carbon will only help your aquarium