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How long shall I have the Co2 running for?

LondonDragon

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UKAPS Team
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21 Feb 2008
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I have mine coming on two hours before lights on and going off two hours before lights out. Don't think 30 minutes is long enough to get that CO2 into the tank before lights on.
 

Dan Crawford

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UKAPS Team
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21 Jun 2007
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Daventry, Northants
Mine is 24/7.
 
Joined
10 Jun 2007
Messages
961
Location
Dorset, UK
youll see lots of opinions on whether to run co2 for 24 or during the photoperiod..

personally, I run it 2 hours before the lights come on, to 1 hour before the lights go off. I like to turn it off as it gives the fish a break.. plants cant use co2 without light, so IMO its a waste to add it during darkness. In addition, giving the fish a break allows you much higher co2 levels during 'on' times than would be possible from running 24/7.

big contentious topic though!! :lol: we've all argued long and hard over this one.
 

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