Is there another use for old carbon? I've been throwing it out, but now I wonder if I should rinse it and put it in the garden or something. Any ideas?
Great! Thanks for the reply.It can go in your garden or compost according to this article: https://smartaquariumguide.com/used-activated-carbon-from-fish-tank/
Just be mindful if you’re using the carbon to remove medications or toxins!