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#1
08-15-2009, 05:30 AM
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LPS recede and shrink!!!!!!!
Hi all,
I am just wondering if anyone experience a similar situation as I do. My LPS coral fully expand nicely after three to six after the photoperiod (when the lights are on). However, toward the end of the day some of the LPS tend shrink up and recede one or two hrs before the lights go out. My photoperiod is 8.5 hrs with T5. I guess is that the coral cell (Zooxanthella) saturated with light or the lights are too intense. Is this normal? Your inputs are welcome. Thanks 
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#2
08-15-2009, 05:43 AM
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Mine stay fully expanded at all times under 400w M/H. Even after my lights are out they are still mostly expanded to full capacity.
How many T5's and what watts are you running on what size tank?
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150 Gal system 3'x3' 400W M/H, Bekett skimmer, Dart return,1/4 HP Chiller 180 Gal Drop tank, LED lights, Bubble master 250 skimmer,Hammerhead on a closed loop, Speed wave return.
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#4
08-15-2009, 06:07 PM
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It is a 34gal RSM, 110W T5.
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#5
08-15-2009, 06:33 PM
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I think it is probably the T5 causing constant illumination at the coral.
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