QuoteReplyTopic: Gas Exchange Posted: July 03 2009 at 10:26pm
I was just reading a post in another thread and it said something about glass tops not allowing gas exchange... if i have glass tops on my display and an open sump am i getting proper gas exchange???
No Glass does not only cause a gas problem it also keeps in heat and can cause issues with light when they start to salt over on the inside. Ive seen many many tanks with problems clear up with the removal of the glass tops.
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I agree mostly with Dion and somewhat with Shane. In order to get good gas exchange with a covered tank and the sump open then you would need a very large sump and good surface disturbance of the water.
This includes the direction of water movement. Water moving quickly from the bottom (lowest pH) to the surface (highest pH) is best.
The result is less stress, less chance of sickness in fish, better growth, better expansion in coral, better algae and bacterial growth which reduces N compounds. Everything does better when the pH is made higher by maximizing gas exchange.
May I come see your tank in the next few days?
Edited by Mark Peterson - July 04 2009 at 1:22pm
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