How long shall I have the Co2 running for?

Vito

Member
Joined
2 Feb 2008
Messages
527
Location
Watford, Hertfordshire
what time period should i keep the co2 on?

At the moment lights are on for 8.5 hours, co2 comes on 30 mins before lights on and 20 mins before lights off....

Lights on 3PM - off 11:50PM

Juwel Rio 125

Dosing Dry ferts....

if someone could steer me in the right direction, that would be great.

Thanks

Vito.
 

LondonDragon

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Staff member
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21 Feb 2008
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10,934
Location
London
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.
 
Joined
10 Jun 2007
Messages
963
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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