New LED Strips Causing Possible Light Shock?

Discussion in 'LED Aquarium Lighting' started by HollyG, Apr 15, 2012.

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  1. HollyG

    HollyG Teardrop Maxima Clam

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    So, I orginally had two 20w 50/50 PCs for my 10gal reef when I first started. I then added a Hamilton Blue LED strip, not sure of the wattage on it, tried looking couldn't find it. So, then I upgraded to a 20" T5HO fixtured that holds two 18w T5HO bulbs. I added the blue Hamilton strip that I had with the PCs onto the T5 fixture. Had no problem with light shock at all... didn't need to acclimate, but I was ready to do so if need be. I had all the corals under this lighting with one actinic T5 and one 12,000K T5 with the blue led strips for about 3 weeks before I added two 12" 2.2w Led strips. These ones can change color, so I set it to purple because that made the colors in teh corals perfect! The next day it looked like the Devils Hand was going into a shed... it seemed normal to me because it haden't shed for a while. I never thought of light shock. Then today I had noticed that my frogspawns and my hammer are only coming out about half way. Everything else in the tank seems happy! Even my other LPS (trumpet). All sps and softies are acting normal. It isn't a parameter, they all checked out fine. So, you think the two 12" 2.2w Led strips are the cause? Both the strips together are a total of 18 extra LEDs. The thing that will make acclimation easier is that I can actually dim those strips down with the remote. I'll dim the strips down to see if there's a difference in the corals being affected. I just didn't think that two 12" led strips that aren't even a white light, they are purple, could cause light shock.
     
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  3. 2in10

    2in10 Super Moderator

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    Definitely is possible, the color coming from them could be an issue also. You may have exceeded the threshold for light need that the corals had developed.
     
  4. HollyG

    HollyG Teardrop Maxima Clam

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    Why would the color coming from them be an issue? What do you mean? The colors of the coral look great to me... i didn't know that would be a problem? I'm confused lol.
     
  5. chelseagrin

    chelseagrin Fire Goby

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    what hes saying is your corals are very used to the lower level of light, and that certain wavelength. the led's you purchased boosted your light output, and also added a different wavelength the corals were not quite used to. hence the shock.
     
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  6. 2in10

    2in10 Super Moderator

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    Thank you, exactly
     
  7. HollyG

    HollyG Teardrop Maxima Clam

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    Oooohhhh!! Ok... I knew about the increase of light output causing possible shock but I didn't know about the different wavelength doing that too. In this case it would be the purple then? I've only ever had blue/ white wavelengths. Sorry about not understanding, I actually have a learning disability that affects the way I read/ understand sentences. Lol. No not dislexia lol
    I dimmed the strips down to the second last lowest setting and the spawns and hammer opened all the way by the end of the day. I'll slowly bring it back up over time then :) Devil's hand actually is in a shed though :)
     
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  9. chelseagrin

    chelseagrin Fire Goby

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    yeah sounds good, i would put if up a notch every two or three days. eventually getting up to the light full potential and the corals will be used to it.
     
  10. HollyG

    HollyG Teardrop Maxima Clam

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    My thoughts exactly! I just had no idea that led strips could be that strong lol If they had been a white led strip made to specifficly grow corals I would have been a little more careful. But since these aren't for growing coral and they are on a purple setting I didn't think it would put out enough PAR or enough intense light to effect the corals like that. The 2 strips combied is an extra 18 LEDs though (plus the 15 LEDs on my other strip and two 18w T5 bulbs), so no matter what color it is, it probably is putting out a decent intensity of light I suppose?