reef lighting question

zippopunk1 · 10/09/2008, 06:19 PM

i have a 40 gallon
the coral i have now are shrooms, and zoos
fish i have are
cardnal
2 blue stipe pipes
1 dragon face pipe
catalina goby
i just bought a pendant 250 metal halide
my question is how high should i hang the light i would like to start doing some sps

stlrams88 · 10/09/2008, 06:51 PM

what are the dimensions?

zippopunk1 · 10/09/2008, 06:53 PM

Dimension for the fixture:11-3/4" x 10-1/2" x 2-1/2" high

m2434 · 10/09/2008, 07:10 PM

I would hang it 8-12 inches, for two reasons splashing and heat. The lower end of the spectrum would be better for efficiency.

zippopunk1 · 10/09/2008, 07:12 PM

does it matter what bulb i used for this like 10k vs 20k

troyman · 10/10/2008, 02:24 AM

10k is more like natural sunlight 20k is more on blue side i would use 10k

reeferstace · 10/10/2008, 05:32 AM

If I'm not mistaken, the Catalina goby is a temperate-cool water species. I am concerned that reef temperatures will not be suitable for this fish in the long run.

zippopunk1 · 10/11/2008, 12:28 AM

my tank stays at about 75 with the fans i have on it i just lose a lot of water with evaporation

tm49er · 10/11/2008, 07:16 AM

i hang my 250 about 8 - 10 inches off the water. have to run a fan in the summer or the temp will soar into the upper 80's.

10/09/2008, 06:19 PM	#1
zippopunk1 Registered Member Join Date: Jun 2007 Location: cali Posts: 746	reef lighting question i have a 40 gallon the coral i have now are shrooms, and zoos fish i have are cardnal 2 blue stipe pipes 1 dragon face pipe catalina goby i just bought a pendant 250 metal halide my question is how high should i hang the light i would like to start doing some sps

10/09/2008, 07:10 PM	#4
m2434 Registered Member Join Date: Jan 2004 Posts: 2,171	I would hang it 8-12 inches, for two reasons splashing and heat. The lower end of the spectrum would be better for efficiency. __________________ Our imagination is stretched to the utmost, not, as in fiction, to imagine things which are not really there, but just to comprehend those things which are there. ~Richard Feynman

10/10/2008, 05:32 AM	#7
reeferstace I'm a little people Join Date: Sep 2008 Location: Over Yonder Posts: 1,392	Goby If I'm not mistaken, the Catalina goby is a temperate-cool water species. I am concerned that reef temperatures will not be suitable for this fish in the long run.

10/09/2008, 06:51 PM	#2
stlrams88 Registered Member Join Date: Jan 2004 Location: Newport News, Virginia Posts: 577	what are the dimensions?

10/09/2008, 06:53 PM	#3
zippopunk1 Registered Member Join Date: Jun 2007 Location: cali Posts: 746	Dimension for the fixture:11-3/4" x 10-1/2" x 2-1/2" high

10/09/2008, 07:12 PM	#5
zippopunk1 Registered Member Join Date: Jun 2007 Location: cali Posts: 746	does it matter what bulb i used for this like 10k vs 20k

10/10/2008, 02:24 AM	#6
troyman Registered Member Join Date: Sep 2008 Location: troy ny Posts: 1,025	10k is more like natural sunlight 20k is more on blue side i would use 10k

10/11/2008, 12:28 AM	#8
zippopunk1 Registered Member Join Date: Jun 2007 Location: cali Posts: 746	my tank stays at about 75 with the fans i have on it i just lose a lot of water with evaporation

10/11/2008, 07:16 AM	#9
tm49er Registered Member Join Date: Feb 2003 Location: Charlottesville, VA Posts: 253	i hang my 250 about 8 - 10 inches off the water. have to run a fan in the summer or the temp will soar into the upper 80's.