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Old 04-11-2012, 12:55 PM   #131
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Quote:
Originally Posted by audifusion
Tried a 30w today, only have one, the light penetration was pretty good. Will post up a pic tomorrow after the sand settles( did some fine tuning on aquascaping )

I have a bunch of 10w 20000k, they are nice colour but not powerful enough.

I would go with 16000 - 20000k though.
Look forward to seeing a pic of the 30w.

I'm debating whether to try out the 20000k.. Might go for it on my other tank.

Yea I use a 10w just to get rid of the slight v shaped shadow in between my 2 20w on my 55 but I agree it's penetration is no where near as good.
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Old 04-11-2012, 12:57 PM   #132
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Originally Posted by Marquis

I think a billion of us are waiting to find out that answer
I am slowly trying to test this. My birdsnest coral is growing well under the 20w 12000k and I need to get some pics up here for you to see.

Now my 55g is up and running I am saving up for some SPS frags to try out.
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Old 04-11-2012, 12:58 PM   #133
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Originally Posted by audifusion
you can even just buy the smd led chip itself without the housing and such.

Much cheaper that way.

Then you just need to mount it on a heatsink and get a power supply.

But the housing is completely maintenance free.
Good point! I looked at these and they are much cheaper but I liked the housing for my particular application. I may try these in the future.
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Old 04-11-2012, 01:25 PM   #134
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Why are you thinking of trying a 20k spectrum vs the more normal 12k-15k ?? I want to see a blue one for night lighting and other fill like the antinic lighting
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Old 04-11-2012, 02:31 PM   #135
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Originally Posted by didysis
Why are you thinking of trying a 20k spectrum vs the more normal 12k-15k ?? I want to see a blue one for night lighting and other fill like the antinic lighting
Well currently on my 55g reef I have that canopy with the 12000k whites and 2 10w blues and it looks great. But now my 72g FOWLR is without a light so I am thinking the 20000k might have the right mix of both white and blue so I could get by with just using 2 20w 20000k.
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Old 04-12-2012, 01:55 AM   #136
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Originally Posted by TomStav

Well currently on my 55g reef I have that canopy with the 12000k whites and 2 10w blues and it looks great. But now my 72g FOWLR is without a light so I am thinking the 20000k might have the right mix of both white and blue so I could get by with just using 2 20w 20000k.
I have decided to get 2 16000k 20w for my 72g FOWLR, I'll post some pics when they arrive.
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Old 04-12-2012, 06:34 PM   #137
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I'm still wondering about growth shots from these.
I considered Ecoxotic Cannon pendants for a tank a while ago and I contacted them asking how many I would need. They told me that I would need a lot of these 50 watt pendants to make my project work. They were confident that just one every 2 feet or so would not support corals.
These are the ones I am speaking of
Cannon LED Pendants
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Old 04-12-2012, 09:44 PM   #138
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me to X, like to make sure they will support all types of corals before I buy any
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Old 04-13-2012, 03:18 PM   #139
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What about using fluorescent tubes @6500k for good growth. You could put the tubes closer to the back or middle .

And then using the LEDs @ 12000-20000k closer to the front to optimize the look of the tank visually.

like a combo set-up, with the best of both worlds,

Good growth with the 6500k, but since the light colour is yellowish and doesn't look visually appealing, adding in the higher k LEDs for visual impact.

Thoughts?
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Old 04-13-2012, 03:20 PM   #140
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Quote:
Originally Posted by mr_X
I'm still wondering about growth shots from these.
I considered Ecoxotic Cannon pendants for a tank a while ago and I contacted them asking how many I would need. They told me that I would need a lot of these 50 watt pendants to make my project work. They were confident that just one every 2 feet or so would not support corals.
These are the ones I am speaking of
Cannon LED Pendants
The spread of light out of those cannons looks pretty narrow
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