Breathing, we take it for granted.

[Bryn]

Ok the title seems to be misplaced but before you switch to a different thread read this quote.

"If you had to breathe (respire) as a coral breathes,this would be the equivalent of holding your lungs outside of your body, inside out, and just hoping that the wind would blow hard and long enough for you to be able to breathe. This is how corals breathe in their environment and the scenario above illustrates the importance of water flow for adequate gas exchange in corals. This perspective might make you think twice about reducing your aquarium's flow at night."

If still interested then go over to this article post.

http://www.advancedaquarist.com/2006/6/aafeature2

 

[Mark Gray]

I have sort of thought about something a lot different but good point. I was reading something totally different but they are starting to slaughter chickens with C02 with in my opinion is very in humane