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Old 12-22-2012, 01:20 AM   #11
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How deep is the tank? Mounting it that high might cause problems on stuff at the bottom of the tank. The light needs to be able to penetrate. Not sure if LED's will or not but I know T5 lights aren't good in anything deeper then 26"
well my tank is about 20" tall. and my light produces a lot of power lol. its pretty powerful. I have a what i think is a torch coral and it looks like its doing pretty good. its at the bottom of the tank
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Old 12-22-2012, 01:27 AM   #12
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Yeah I'm just starting to add corals to my tank and my ricordea at the Buttom of the tank opens up crazy
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Old 12-22-2012, 01:32 AM   #13
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I'm glad you're enjoying the lights. You have a torch if all tentacles are single, not branching.
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Old 12-22-2012, 01:36 AM   #14
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I'm glad you're enjoying the lights. You have a torch if all tentacles are single, not branching.
Youll be fine moving them up a lil bit so light will cover more my tank is 30" deep and my leds are 8" above tank and coral on bottom is still getting plenty of loght
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Old 12-23-2012, 02:11 PM   #15
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I would still suggest two of them as well, one single fixture is not enough to do the trick for the entire 4' tank. I had a customer with a similar lenses and when they hang it high enough to cover his 48" tank, it ends up not providing enough PAR to the coral even his mushroom are not opening up.
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Old 12-23-2012, 02:13 PM   #16
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Youll be fine moving them up a lil bit so light will cover more my tank is 30" deep and my leds are 8" above tank and coral on bottom is still getting plenty of loght

That really depend on the brand of LED and the type of lenses your LED is using. Not all LEDs are the same especially comes to performance and that is why the cost are different. ( of course, there is also the gimmick factor for some of the LEDs)


Oh after I double check the pictures, the light is already sitting on a canopy, which means it is already at about 6-10 inches I would assume.

Just to let you compare the coverage of having one to have ..well 3 ( I suggest him to only use 2 but he want to match the brightness of his 2x250W MH)

The LED I think is hanging about 10-14 inches, you can tell the differences on the sides. And these LEDs are using 90 degree lenses. His tank is 48x24x18

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Old 12-23-2012, 02:16 PM   #17
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That really depend on the brand of LED and the type of lenses your LED is using. Not all LEDs are the same especially comes to performance and that is why the cost are different. ( of course, there is also the gimmick factor for some of the LEDs)
True i agree all leds are not the same and have different lenses seems odd that mushrooms are not openeng tho they use very lil light mine open up with just moonlights but all mushrooms are different as well
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Old 12-23-2012, 02:18 PM   #18
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True i agree all leds are not the same and have different lenses seems odd that mushrooms are not openeng tho they use very lil light mine open up with just moonlights but all mushrooms are different as well
Also depends on coral being kept theres tons of low light coral if sps then yes deffinately 2 fixtures theres just so many factors to think about
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Old 12-23-2012, 02:22 PM   #19
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True i agree all leds are not the same and have different lenses seems odd that mushrooms are not openeng tho they use very lil light mine open up with just moonlights but all mushrooms are different as well

Well it is too bad I don't have the pictures that he show me, he first shown me the 2 LEDs with 120 degree lenses sitting on top of the glass top, everything looks fine, but once he hang the light to about 8 inches or so, you can tell the light are not going deep enough. All the light seem to go around the outside cuz the higher degree of lenses it is the less PAR it will provide to deeper tank.
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Old 12-23-2012, 02:25 PM   #20
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Well it is too bad I don't have the pictures that he show me, he first showed me the 2 LEDs with 120 degree lenses sitting on top of the glass top, everything looks fine, but once he hang the light to about 8 inches or so, you can tell the light are not going deep enough. All the light seem to go around the outside cuz the higher degree of lenses it is the less PAR it will provide to deeper tank.
120 lenses for sure dont penetrate more of a spread now i understand ya that would make sense
mine are 90
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