I am going to guess at the answer the experts will give you, RC51 but I bet it goes like this: "Aireate for as long as you can afford, with 24/7 being the best". "The older the pond is and if you are interested in removing the most muck it needs to be 24/7 if you are interested in the best results".



"I love living. I have some problems with my life, but living is the best thing they've come up with so far." � Neil Simon,