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#21
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![]() Who is Doug?
Man...I am getting really confused now. |
#22
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![]() Quote:
Sounds like you have the "diagnosis" right then. I too have lost corals to bleaching from too much light too quickly. I agree about the birdsnest too--have to be careful about how much light they get. Even my hot pink birdsnest turns pale in high light. Once I moved it to lower light, it colored back up. |
#23
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![]() doug is fishytime.
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RSM 250. Clownfish, Fox face, Blue tang, Yellow tang, Kole tang, Clown tang, Coral beauty angel, French Angel, splendid dottyback. CUC, softies, lps, sps. |
#24
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![]() Dude....your tank is less than two months old....period. Ask others here how old they feel a tank should be before it can sustain sps? I have the exact same light you have and the depths of our tanks are similar. Your acros are not losing color because of the light. Your tank simply isnt ready for some of the more sensitive sps. Hence the reason I recommended montis or birdsnest if you wanted to try putting some sps into a tank that young.
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260g mixed reef, 105g sump, water blaster 7000 return, Bubble King SM 300 skimmer, Aqua Controller Jr, 4 radions, 3 Tunze 6055s,1 tunze 6065, 2 Vortech MP40s, Vortech MP20, Tunze ATO, GHL SA2 doser, 2 TLF reactors (1 carbon, 1 rowa). http://www.canreef.com/vbulletin/showthread.php?t=50034 . Tank Video here http://www.vimeo.com/2304609 and here http://www.vimeo.com/16591694 |
#25
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![]() Quote:
![]() On the subject...I find this awfully interesting. I would also be really interested to find out if there is a "perfect" PAR/PPFD for individual corals. I bet there is. |
#26
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![]() lol but i am not complaining about major lose of color. My green tabling acro got slightly lighter, but in turn my pink birds nest actually became pink. before it was like a dull purple with blue polyps and now its actually pink. But when i am talking about the light being to intense for certain corals its true. at first i set the stylo higher in the tank and the base orange started to go white, so i moved it back down to the sand and the base color came back. now after 1 day of cutting down the lighting the stylo and the green polyp birdnests are starting to gain color again (the birdsnest bleached out during shipping). I know my tank is young but i haven't lost any colonies, just had some issues with smaller frags. no biggy. but this thread isn't about me, more about an informative link talking about photo periods.
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#27
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![]() Quote:
Mods? Would be nice if you could clean this thread up please. ![]() I wonder also how effective this cutback photoperiod would be for people who don't have supplimental lighting, or lack the ability to turn certain bulbs on an off independently. Like, say my 33g tank which has 2 T5s which are on for 11 hours a day (I think lol). Seeing as they aren't overly intense, I'm wondering if a cutback photoperiod would be beneficial or detrimental. I'm looking to add a MH to the setup, so eventually it will be a moot point for me, but in the case of others whose lighting isn't overly intense, I wonder if a longer photo period would be more or less beneficial. The same that I wonder if a tank with 250w halides would need a longer photo period than that same tank with 400w halides over it? So, in simple terms without all this thinking out loud (lol), does PAR/PPFD play into the equation? Last edited by Myka; 03-07-2009 at 03:14 PM. |
#28
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![]() Yes, let's keep on topic please.
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Brad |
#29
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![]() Quote:
Reducing the lighting cycle will darken the colors of sps. The coral reacts to the lack of light by darkening itself in an attempt to absorb as much of the available light as it can. Much like the difference between wearing a black shirt or a white shirt in the summertime(mmmmm summer).
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260g mixed reef, 105g sump, water blaster 7000 return, Bubble King SM 300 skimmer, Aqua Controller Jr, 4 radions, 3 Tunze 6055s,1 tunze 6065, 2 Vortech MP40s, Vortech MP20, Tunze ATO, GHL SA2 doser, 2 TLF reactors (1 carbon, 1 rowa). http://www.canreef.com/vbulletin/showthread.php?t=50034 . Tank Video here http://www.vimeo.com/2304609 and here http://www.vimeo.com/16591694 |
#30
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![]() I have 3 250w MHs on for 10 hrs a day, no other supplemental lighting.
I like seeing my fish so I don't see me cutting back on the photoperiod anytime soon ![]() |