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Re: [APD] Lighting Peroids & Duration

What are the wattages of the bulbs?  If the total is more than about  
60-70 watts, you should  be limiting the time that both bulbs are on  
to about 8 - 10 hours.  I'm not sure what the difference is between  
the "plant specific" and "fish viewing" bulbs, either as to wattage  
or color temperature, so I don't know which should be on the  
longest.  I do know that algae are not more likely to grow well under  
either one.  If you provide the algae with adequate food and CO2, and  
stimulate it to start growing by allowing the fertilizer levels in  
the tank to fluctuate too much, or allowing the daytime CO2  
concentration to vary too much, you will grow algae with any bulb.


On May 2, 2007, at 1:49 PM, Brown, Daniel wrote:

> Currently my 29G planted tank has two power compact lamps (one with a
> plant specific bulb and one with a fish/viewing bulb) and a LED moon
> light, the power compacts are on for the following periods each day  
> (the
> moonlight is on the rest of the time):
> 	07:30 to 09:00 - To let me check everyone is alive before I go
> to work and for the morning feed.
> 	14:30 to 22:30 - The main day cycle.
> I'm currently thinking about changing this (mainly as I'd like to see
> the tank contents during the day at the weekends more) to one big  
> period
> but staggering the lamps start times to create a dawn & dusk cycle:
> 	08:00 to 22:00 - The plant specific lamp & bulb combo.
> 	09:00 to 21:00 - The fish/viewing lamp & bulb combo
> Does this seem like a good idea? Should I keep a noon break in the
> sequence for an hour by maybe only turning off the plant specific  
> bulb?
> Also which bulb/lamp should be on for the longer time, I'd imagine the
> plant specific bulb would result in more algae (even though it looks
> dimmer) than the bulb that's for making fish nice to look at?
> Cheers,
> Daniel
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