fish gasping at surface
I woke up this morning to my fish gasping at the surface of the water, all of them. I have heard some people use bubblers at night to increase oxygen levels. What is it about this that works, is it the surface agitation created when the bubbles surface? Could I just inject air from an air pump into my tank similar to how I do hte c02? Will it be sufficient if its just a bunch of small bubbles, or does it need to be a vigorous stream of bubbles to really churn up the surface of the water.
I will be making changes tonight to make sure this doesn't happen again, and want to avoid making mistakes.