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bharada · 05-31-2005, 09:11 PM

If your plants pearl heavily during the day then I doubt that the O2 would be depleted during the night. But if you need peace of mind, run an airstone during the middle of the night for 4-5 hours.

05-31-2005, 09:11 PM	#5 (permalink)
bharada Senior Member Join Date: Apr 2004 Location: Fremont, CA USA Posts: 675 iTrader Ratings: 1 iTrader Positive Rating: 100% Plant Points: 9700	If your plants pearl heavily during the day then I doubt that the O2 would be depleted during the night. But if you need peace of mind, run an airstone during the middle of the night for 4-5 hours.