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Old 03-17-2011, 04:30 AM   #11
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I have a Fluval Chi
It has 11 LEDs packed into a 1x1" array that sits in the water in the center of the tank
When I first got it and turned the filter on briefly to make sure everything was working the lights seemed blinding to me
I have Red Cherry Shrimp in the tank and they don't behave any differently when the lights are on than when they are off
The bulbs crust over with algae in three days to the point that light output is noticeably reduced and the entire tank takes on a yellow then green color cast
Yesterday I found that the newly hatched baby shrimp are swimming up there and hanging onto the lighted LEDs to graze on the algae and the bulbs aren't fully encrusted yet
So I would say that the intensity of my LED lights doesn't bother my shrimp at all
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Old 03-17-2011, 04:34 AM   #12
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Quote:
Originally Posted by kc2ped
I have a Fluval Chi
It has 11 LEDs packed into a 1x1" array that sits in the water in the center of the tank
When I first got it and turned the filter on briefly to make sure everything was working the lights seemed blinding to me
I have Red Cherry Shrimp in the tank and they don't behave any differently when the lights are on than when they are off
The bulbs crust over with algae in three days to the point that light output is noticeably reduced and the entire tank takes on a yellow then green color cast
Yesterday I found that the newly hatched baby shrimp are swimming up there and hanging onto the lighted LEDs to graze on the algae and the bulbs aren't fully encrusted yet
So I would say that the intensity of my LED lights doesn't bother my shrimp at all
Thanks for the info Charlie.

With the fluval chi, are the lights submerged? How does it get crust over with algae?
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Old 03-17-2011, 04:48 AM   #13
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If you look at the pictures of the Chi you will see the brown box out in the middle of the tank that extends above and below the surface
The LEDs are in the center of the bottom of that box so they are completely submerged
Around them are the holes where the pump sucks water up through the filter
The water jets out of the top of the box and falls back into the tank
I find that that creates a lot of splash out of the tank so have a length of airline running from the top of the filter up into the clear tray they give you to put rocks or plants in
I piled it with rocks and have to carefully position one over the tube to keep the splash down
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