175watt MH lights over 20" tank?

The Reefer91 · 06/25/2006, 01:00 PM

would three 175watt MH lights supplemented by 2 110watt VHO lights be enough light for SPS, LPS and clams?

pheel · 06/25/2006, 01:16 PM

I have MH175 10 000K over a 24" tank with 2 110W actinics. It's definitly enough for LPS (even at the bottom). I never tried SPS but I'm confident that it would be fine for most of them. So far, I have been reluctant to try a clam since the bottom is the best place to put them.

Let's wait for other comments

jman77 · 06/25/2006, 01:32 PM

Generally you use a MH per 2 feet of length... so you could set this up on a 6 foot tank. You should be ok .. I use to use 2 x 10k 175w and 2 uri super atinics over a 75g a while ago and had great growth.

The Reefer91 · 06/25/2006, 02:33 PM

the tank is 72" long. it's a standard 125g. i don't want to use T5 as i've found they are more expensive to purchase. they cost less in the long run, but they don't have the ripple effect

jman77 · 06/25/2006, 03:23 PM

I wouldn't go T5's for Actinic's as reports are coming back that the new Uri SA t5's don't seem to be the same as the VHO's Actinics....

Some good 10k bulbs and a pair of VJHO SA's and you should be good

06/25/2006, 01:00 PM	#1
The Reefer91 Registered Member Join Date: Jan 2006 Location: Arlington, VA Posts: 1,250	175watt MH lights over 20" tank? would three 175watt MH lights supplemented by 2 110watt VHO lights be enough light for SPS, LPS and clams? __________________ Dan "Every day we fade little by little, 'till there's nothing left of us but the lies we've sown." Current Tank Info: 20g L display: 2x65watt Coralife light, Octopus 150 needle wheel protein skimmer, 1 Koralia 2 and 2 powersweeps, and a DIY sump/fuge.....120G in the works!!!

06/25/2006, 02:33 PM	#4
The Reefer91 Registered Member Join Date: Jan 2006 Location: Arlington, VA Posts: 1,250	the tank is 72" long. it's a standard 125g. i don't want to use T5 as i've found they are more expensive to purchase. they cost less in the long run, but they don't have the ripple effect __________________ Dan "Every day we fade little by little, 'till there's nothing left of us but the lies we've sown." Current Tank Info: 20g L display: 2x65watt Coralife light, Octopus 150 needle wheel protein skimmer, 1 Koralia 2 and 2 powersweeps, and a DIY sump/fuge.....120G in the works!!!

06/25/2006, 01:16 PM	#2
pheel Registered Member Join Date: Mar 2004 Posts: 192	I have MH175 10 000K over a 24" tank with 2 110W actinics. It's definitly enough for LPS (even at the bottom). I never tried SPS but I'm confident that it would be fine for most of them. So far, I have been reluctant to try a clam since the bottom is the best place to put them. Let's wait for other comments

06/25/2006, 01:32 PM	#3
jman77 Registered Member Join Date: Apr 2005 Location: West Palm Beach, Florida Posts: 2,391	Generally you use a MH per 2 feet of length... so you could set this up on a 6 foot tank. You should be ok .. I use to use 2 x 10k 175w and 2 uri super atinics over a 75g a while ago and had great growth.

06/25/2006, 03:23 PM	#5
jman77 Registered Member Join Date: Apr 2005 Location: West Palm Beach, Florida Posts: 2,391	I wouldn't go T5's for Actinic's as reports are coming back that the new Uri SA t5's don't seem to be the same as the VHO's Actinics.... Some good 10k bulbs and a pair of VJHO SA's and you should be good