Originally Posted by fastricky
So, curious to know what the consensus is... on this thread everyone is saying keep it under 2 mins. I did a search under 'aeration' and other threads suggest going as high as 20 mins with an aqua pump and stone...
Confused! I too after say 2 minutes will start to get foam going all over the place...
If you're using an aqua pump and stone, you don't have an O2 system. You're pumping regular air (like, the stuff around us that we breath). That's about 80% nitrogen and 20% oxygen*.
It's going to take a lot longer to aerate with that sort of setup than with an oxygen system.
*Technically it's more like 78% N2, 21% O2, almost 1% argon, and some CO2 and trace amounts of other stuff
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