I've decided to try out active aerated compost tea but I'm unsure of how much aeration to provide, and how. I've seen that I should target 5.5+ ppm oxygen in the liquid, but I have absolutely no sense of how quickly oxygen will be consumed or what putting it back in the tea would look like.
Some online guides show 5 gallons of tea aerated by a 1-gallon-per-minute aquarium air stone, and others pump tens of gallons of air per minute for the same amount of tea. Sometimes they pump the air through an air stone, sometimes through something more sophisticated. I see that the size of the bubbles has a big impact how effectively they oxygenate the water, so it's more than knowing what volume of air to pump through for a given amount of tea.
So my question is, for a given amount of compost tea, how do I aerate it adequately and economically?