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Old 07-08-2006, 04:03 PM   #11
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That is true. They aren't getting enough light to feed the organisms that give the coral their bright colors. The brown ones I guess thrive off of the lower light and is why they turn that brown color. That is what I've been told anyway.
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Old 07-08-2006, 04:23 PM   #12
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in the case of a clam it takes a long time to show any signs of illness so I look for any color changes at all. If it turns brown wouldnt that be to late? I check everything off and on all day long with a magnifying glass and look for anything different. (I know I spend more time watching my tank than anything else) and as long as everything is well I am alright.
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Old 07-08-2006, 04:35 PM   #13
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I was refering to corals only. I think with the clams by the time its brown I think it'd be too late.
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Old 07-08-2006, 04:42 PM   #14
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okay so with some corals if they turn brown you still have a good chance with them? Maybe move them or something? I just dont want to freak out or think that they are dead if I see this.
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Old 07-08-2006, 09:07 PM   #15
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If the polyps are still coming out and its turning brown then I'd say yes move it to a place with better lighting and it should have a chance. Hopefully it will get its color back within a couple of weeks or so. I gave my montipora to a friend who has halides becuase I didnt want a brown coral. Anyway I'll keep you posted to let you guys know how long it takes for them to regain their color. That is unless someone else might now.
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Old 07-09-2006, 10:20 PM   #16
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The only down side to getting some SPS's under PC's is that some of them loose their color and just turn brown.
Exactly. It's not really worth paying all that money for brightly colored pieces if you can't keep them healthy. Some SPS species like Hydnophora, Stylophora, and Montipora can be kept under fluorescents and remain fairly colorful and healthy. Stay away from Acropora SPS's for sure and Crocea clams. Squamosa, Derasa, and Hippo clams are all much better suited for aquariums using fluorescent lighting.
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Old 07-09-2006, 11:18 PM   #17
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Stay away from Acropora SPS's for sure and Crocea clams. Squamosa, Derasa, and Hippo clams are all much better suited for aquariums using fluorescent lighting.
Very true, however, keep in mind that squamosa and derasa prefer to dwell in the substrate. As such, they still require a bit stronger light to reach them, despite being considered lower-light species. Species like crocea do require more light, but als prefer to dwell on the rockwork. Placing them high in the tank under the right amount of CF can sufice as well. Either way, as with any livestock, just make sure you provide what the animal needs to survive and thrive.
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Old 07-10-2006, 04:49 AM   #18
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As such, they still require a bit stronger light to reach them, despite being considered lower-light species. Species like crocea do require more light, but als prefer to dwell on the rockwork. Placing them high in the tank under the right amount of CF can sufice as well.
I strongly and respectfully disagree Lando. That's the same as saying high light SPS's, such as Acros, will thrive in the top of tanks w/ PC's. WPG, etc. does not matter in these cases -it's intensity. Even w/ the same WPG you will not have the same light intensity when comparing MH vs. PC, VHO, or T5 fluorescents. As I said this is my personal experience as well as information I've gathered through various sources whether it be retailers care requirements, online forums/articles or books on inverts. Crocea's being found near the top of the reef structure, as are Acro's, is proof of the extreme amount of light they are adapted to and need to thrive. That is part of what causes their desirable coloration patterns, although other species IMO are just as attractive and much better suited for tanks with out MH.
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Old 07-10-2006, 10:20 AM   #19
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I strongly and respectfully disagree Lando.
No worries, that is part of what this site a good one.
I have, as well as others on this forum, successfully kept a crocea under CF lighting in my first reef tank. It did great. When I upgraded to a larger tank, the thought of attempting to pentrate that much more water and depth with CF never even occured to me. I knew a lighting upgrade was needed. There are simply too many variable to consider.
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