Lighting

jeeper4fun · 01/08/2009, 08:14 PM

I just switched over from my 75g to a 150g with some a mix of LPS and SPS. I am running 2 VHO's and 2 175w MH. The tank in 24inch high and seems that the light isn't getting through the water to well. I was thinking about changing to 2 400w MH. Is this too much? What is everyone else running that have tall tanks?

Thanks

LoneRegister · 01/08/2009, 08:28 PM

400w probably too much. I am just now upgrading from a 24" to a 30" and purchased 400w because most of what I read stated 30" and higher user 400w

250w would be my guess for a 24" tank.

Do you have old bulbs?

LoneRegister · 01/08/2009, 08:29 PM

OH - and if the width of the tank has changed - you might want to move the lights around.

nycustomsumps · 01/08/2009, 08:30 PM

i have a 180g and i use 3 -250w MH and 2-160w VHO actinic.
the 400w would be to much.

mfinn · 01/08/2009, 08:30 PM

If it's a 6' tank, I'd go with 3x250 mh.

BuddhaKiss · 01/09/2009, 03:21 AM

Yup, you'll need one MH for every 2 feet. I'm going with 2 250W on my 90G upgrade.

nycustomsumps · 01/09/2009, 05:06 AM

what K rating are you guys using ? iam using coralvue 20K and i would like to try the new SPS MH lamp for 250watt.

01/08/2009, 08:14 PM	#1
jeeper4fun Registered Member Join Date: Feb 2006 Location: Windsor, Ontario, Canada Posts: 13	Lighting I just switched over from my 75g to a 150g with some a mix of LPS and SPS. I am running 2 VHO's and 2 175w MH. The tank in 24inch high and seems that the light isn't getting through the water to well. I was thinking about changing to 2 400w MH. Is this too much? What is everyone else running that have tall tanks? Thanks

01/08/2009, 08:30 PM	#5
mfinn Registered Member Join Date: Apr 2002 Location: Olympia. WA. Posts: 8,648	If it's a 6' tank, I'd go with 3x250 mh. __________________ 240 gallon soft coral tank 50 gallon lps tank

01/08/2009, 08:28 PM	#2
LoneRegister Registered Member Join Date: Nov 2001 Location: Peoria AZ Posts: 324	400w probably too much. I am just now upgrading from a 24" to a 30" and purchased 400w because most of what I read stated 30" and higher user 400w 250w would be my guess for a 24" tank. Do you have old bulbs?

01/08/2009, 08:29 PM	#3
LoneRegister Registered Member Join Date: Nov 2001 Location: Peoria AZ Posts: 324	OH - and if the width of the tank has changed - you might want to move the lights around.

01/08/2009, 08:30 PM	#4
nycustomsumps Registered Member. Join Date: Mar 2007 Location: buffalo ,NY Posts: 52	i have a 180g and i use 3 -250w MH and 2-160w VHO actinic. the 400w would be to much.

01/09/2009, 03:21 AM	#6
BuddhaKiss Registered Member Join Date: May 2008 Location: Northern Va Posts: 1,068	Yup, you'll need one MH for every 2 feet. I'm going with 2 250W on my 90G upgrade.

01/09/2009, 05:06 AM	#7
nycustomsumps Registered Member. Join Date: Mar 2007 Location: buffalo ,NY Posts: 52	what K rating are you guys using ? iam using coralvue 20K and i would like to try the new SPS MH lamp for 250watt.