http://en.wikipedia.org/wiki/Activated_charcoal
Good explanation on Wiki. As to why some love it, some hate it, some love it part-time, it's all a matter of opinion.
I've heard people say that when activated carbon reaches its absorbent capacity, it starts leeching. I've also heard that...
Hi,
I was out at Petco looking at the reptile section and I see these fine sand the claims to have lotsa calcium carbonate. I was just wondering if anyone has ever used those with African cichlids?