Pond Boss Forums MANAGING AN EXISTING POND Evaluating and adjusting fish populations Pond full of dead fish

Hi Don - I'm very sorry to hear about your loss of fish.
To answer the question of the oxygen transfer rate at the bubble, a Vertex CoActive AirStation will transfer 5 lbs of oxygen per day at 8-9 foot depth with 1 CFM. As mentioned in previous posts, the majority of oxygen is dissolved into the water at the surface through circulation.