Lighting (Mid-day break)

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16 Aug 2006 04:20 #1 by Peter OB (Peter O'Brien)
Does anyone know the reasoning/logic behind having your lights switch off for a couple of hours during the day i.e on a timer.

I'm trying it out at the moment in my planted tank. Growth seems normal but i definitely have less algae on the glass.

Lights are now on from 10am to 12am and then 2pm to 10.30pm. Total 10.5 hours.

Previously had the lights on for about 13-14 hours a day. Is my reduction in algae growth merely that i have the lights on for less time or is the break in the daytime the answer?

Smoke me a Kipper, I’ll be back for breakfast.

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16 Aug 2006 11:33 #2 by platty252 (Darren Dalton)
"It is possable to combat algae in the aquarium by controling the intensity and period of lighting and creating a siesta period."
Quote by Peter Hiscock from the book Aquarium plants.
He suggests a hour and a half break in the middle of a 12 hour period.
But this also depends on your light intensity.

So i would say the break has helped in the reduction of algae.

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17 Aug 2006 10:17 #3 by conor (conor)
Replied by conor (conor) on topic Re: Lighting (Mid-day break)
Yeah, 13 hours is too much. It will cause algal blooms.
the reduction to 10.5 hours is exactly the right amount ogf light, but switching off during the day? Why? That makes no sense.

Why not use an automagic timer thingy. I use them on mine to great success.
I had added too many nutrients and with the addition of T5's to the planted tank, I got some algal blooms.

Out with the clippers and changed the lighting (and feeding) and all is grand again.

Will take new pics very soon. :?

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