Tonight I came in as a segment of the ATOH show was switching subjects to fixing a fellows Las Vegas home sprinkler system. Just before that part they showed a product that looked like balls and I heard part of the discription as ," will take care of fish waste and algae". I didn't hear or see any more. What was that product? What is it's use? It sounded like it may be for a pond.

This is my first post. I looked in the product section but all they had were 2006 shows.

Thanks for any help,