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12-11-2007, 08:28 PM
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#1
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Montis 'R Us
Join Date: Oct 2005
Location: Chuck Co, Mo
Posts: 4,406
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New bulbs - How much to adjust time
I got new bulbs today. How much should I cut back the lighting period? I will be out of town for a few days and don't want to just put the tank in the dark.
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Fish Man Eric
I can see by todays discussion that there seems to be a gray area between the real world and fantasyland!
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12-11-2007, 08:31 PM
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#2
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P P PUPPPY POWER
Join Date: Mar 2006
Location: looking for my people
Posts: 3,660
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how big a difference are we talking?
you probably should be fine with no adjustment
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Friends don't let friends start reef tanks
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12-11-2007, 08:33 PM
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#3
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Enjoy it now
Join Date: Aug 2005
Location: Chattanooga, TN
Posts: 4,087
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I've always been told to use 7 layers of screen and remove one a day.
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12-11-2007, 08:36 PM
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#4
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Montis 'R Us
Join Date: Oct 2005
Location: Chuck Co, Mo
Posts: 4,406
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Quote:
Originally Posted by DarthOcellaris
I've always been told to use 7 layers of screen and remove one a day.
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I stayed with 10,000K bulbs 250w. I also put in 4 new 96w PC bulbs. I don't think I adjusted the timing at all last time.
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Fish Man Eric
I can see by todays discussion that there seems to be a gray area between the real world and fantasyland!
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12-11-2007, 08:42 PM
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#5
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feelin girly
Join Date: Jul 2006
Location: in a never ending state of cold
Posts: 4,147
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how old were the bulbs?
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~Amy
95 corner pent tank being resurected! : a 90 gallon sump, and a 55 frag tank in my basement- well ok, a 75 gallon holding tank for the fish while the frag tank cycles, and the 29 holding my sps, but whose counting?
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12-11-2007, 08:50 PM
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#6
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Montis 'R Us
Join Date: Oct 2005
Location: Chuck Co, Mo
Posts: 4,406
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Quote:
Originally Posted by YLChik
how old were the bulbs?
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Right at 1 year
__________________
Fish Man Eric
I can see by todays discussion that there seems to be a gray area between the real world and fantasyland!
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12-11-2007, 08:52 PM
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#7
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P P PUPPPY POWER
Join Date: Mar 2006
Location: looking for my people
Posts: 3,660
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you know, you can avoid this by switching half the bulbs every 6 months
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Friends don't let friends start reef tanks
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12-11-2007, 08:53 PM
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#8
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Montis 'R Us
Join Date: Oct 2005
Location: Chuck Co, Mo
Posts: 4,406
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Quote:
Originally Posted by know-it-all
you know, you can avoid this by switching half the bulbs every 6 months
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Shhhh! That would take too much effort
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Fish Man Eric
I can see by todays discussion that there seems to be a gray area between the real world and fantasyland!
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12-11-2007, 08:54 PM
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#9
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P P PUPPPY POWER
Join Date: Mar 2006
Location: looking for my people
Posts: 3,660
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Quote:
Originally Posted by ScruffyRubicon
Shhhh! That would take too much effort
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just replace the PC's next week then
__________________
Friends don't let friends start reef tanks
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12-11-2007, 09:04 PM
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#10
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spaceman spiff
Join Date: Feb 2006
Location: houston
Posts: 5,047
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I'm not real sure with metal halide... with my T5 I'm in the habit of swapping out one a month when it becomes time. That way it doesnt blast the coral all at once.
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12-11-2007, 09:08 PM
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#11
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Enjoy it now
Join Date: Aug 2005
Location: Chattanooga, TN
Posts: 4,087
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Quote:
Originally Posted by know-it-all
just replace the PC's next week then
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there ya go  that should acclimate them just fine.
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меня зовут Chris 
