Does anyone here aerate there pond in the summer? Not counting waterfalls. If so why? If not why not?
it's about moving the water about to eliminate dead spots of water and breaking up the stratified lower level where the least amount of oxygen sits.
My research I have a aerated moving bed filter which runs 24/7 plus a waterfall and stream that has 6 drops. I tested my water for oxygen saturation before I turned on my diffuser and the readings were very good(6 mg/l) Oxygen after turning on the aeration in the pond the next day read (9 mg/l). The test were made at the same time of day and the water temps were the same.( 70 F)
nc0gnet0 said:But are these diffusers near your bottom drains? I said before that air domes around bottom drains was a diferent can of worms entirely......
I would like to add at the risk of sounding argumentative that this test proves that your diffusors are indeed adding dissolved oxygen to your pond, I never disputed that. But wouldn't you need to turn the waterfall off and test to make the statement that the difussors are adding more 02 than the waterfall?
I have a fealing I am being misunderstood here. Now if you were to take koikeepers drawing and assume that the waterfall was being fed by your typicall pond in a box skimmer setup that is drawing water from the top layer of water, her claim would be spot on. What I am saying is that if the pump that feeds the waterfall/feature is on the bottom this changes things dramatically. Even with airstones, the majority of the oxygen gets added to the water at the pond surface, but the movement of the bubbles up the water column introduces cirulation, mixing the top layer of oxygenated water with the lower layer of oxygen depleted water. But so does a pump that draws water from the bottom. And yes, the finer the bubbles the better I agree there.
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