Hmm, well, you are probably loosing some light via escaping from the hood
over the rim of the tank. The lower you get them to the water, the less
light that will escape. You may consider making a canopy for the tank and
mounting the PCs in that. That will contain most of the light. Not
necessary, but may be the most effective.
IMO
Shane C.
-----Original Message-----
From: TED WILSON [SMTP:[EMAIL PROTECTED]]
Sent: Tuesday, February 20, 2001 7:43 PM
To: [EMAIL PROTECTED]
Subject: RE: Lights - Suspended vs. Direct Contact
I took two pieces of wood and bolted the sids of the hoods to it. I
then
suspended them from the ceiling. I can see it appears much brighter
and I
did lower them down to about 5 inches.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Shane Clays
Sent: Tuesday, February 20, 2001 8:37 AM
To: '[EMAIL PROTECTED]'
Subject: RE: Lights - Suspended vs. Direct Contact
Are the lights in a hood? How did you suspend them? You will have a
bit of
light escape from the hood, but you should be okay with that. I
think the
amount of light lost from suspending them is well worth getting the
glass
out from under them. You loose about 15-20% of your light with a
clean piece
of glass. That amount goes up rapidly as the glass becomes covered
with salt
spray etc...
IMO
Shane C.
-----Original Message-----
From: TED WILSON [SMTP:[EMAIL PROTECTED]]
Sent: Sunday, February 18, 2001 10:06 PM
To: [EMAIL PROTECTED]
Subject: Lights - Suspended vs. Direct Contact
Ever since I set up my 125 my lights have always sat
directly on top
of the
tank. I used a glass canopy to protect the lights from
making
contact with
the water. After seeing and reading about suspending the
lights I
decided to
suspend the lights today. I removed the glass and suspended
the
lights about
seven inches from the water surface. The tank now seems
brighter.
The light
now floods the whole tank all the way to the top and even
along the
back
wall. The lights I am using are PC lights with a total of
330 watts.
110
watts being 7100k and 220 being 9325k. I didn't use a 20
watt NO
light strip
that used to sit in the back of the tank, but I don't think
it made
much of
a difference.
Knowing that what light humans see and what corals actually
use did
I do a
good thing? Glass absorbs some of the light right? And what
about
the light
that now floods the room that the tank is in....is that a
waste or
was it
also being wasted before by just going through the walls of
the
tank?
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