Posted: Fri Oct 24, 2014 12:27 am Re: Are ceramic rings re-usable?
What Steve said. Charcoal adsorbs impurities and isn't reusable.
Biomedia like ceramic rings is. But, make sure you are rinsing in aquarium water not tap water. The tap water contains chemicals to kill bacteria, and the whole point of biomedia is to grow bacteria.
Tobi a RES born in 2012
1 dog, 1 teenager, 3 aquariums filled with fish, snails, shrimp and a bit of algae