SE MH lamps

eland · 09/30/2009, 09:30 AM

I am running 2 - 250 MH SE lamps using mogul retro kits. I have been having trouble with keeping SPS in my 120 so I am grasping at straws. A couple of freinds suggested that because I don't have a glass shield on my retro mogul fixtures that they are dying because of UV radiation from the lamps. I have read that double end bulbs need a glass but the single end bulbs do not. Is anyone using single end MH bulbs without a glass successful with SPS corals?

nanojg · 09/30/2009, 09:41 AM

SE bulbs have UV protection in the bulb itself so no uv shield is needed. What are your parameters? Flow? Where are your sps placed? what type of reflector are you using? how high are the bulbs? What are the dimensions of the tank?

eland · 09/30/2009, 10:11 AM

-Tank size - 48x24x24
-Reflectors - Coralvue low profile parabolic
-Flow - running 2 squids with 4 returns using a dart for a return pump; Also 2 Tunze pumps 6105 &6055
- Placement of reflectors - in a canopy about 12 inches from the water
- Calcium- 450
- Alk - 9
-temp - 78
salinity - 1.025
pH -8 - 8.2
ammonia -0
nitrite- 0
nitrate- 0 - .2

Running a Geo calcium reactor, Next reef MR1 media reactor with carbon ( have been running GFO but just switched) Chiller, Octopus Extreme 160 skimmer, sump, RKE controller. About 200# live rock on a 2-3 inch sand bed

09/30/2009, 09:30 AM	#1
eland Registered Member Join Date: Aug 2008 Location: Lafayette, LA Posts: 71	SE MH lamps I am running 2 - 250 MH SE lamps using mogul retro kits. I have been having trouble with keeping SPS in my 120 so I am grasping at straws. A couple of freinds suggested that because I don't have a glass shield on my retro mogul fixtures that they are dying because of UV radiation from the lamps. I have read that double end bulbs need a glass but the single end bulbs do not. Is anyone using single end MH bulbs without a glass successful with SPS corals? __________________ Earl

09/30/2009, 10:11 AM	#3
eland Registered Member Join Date: Aug 2008 Location: Lafayette, LA Posts: 71	-Tank size - 48x24x24 -Reflectors - Coralvue low profile parabolic -Flow - running 2 squids with 4 returns using a dart for a return pump; Also 2 Tunze pumps 6105 &6055 - Placement of reflectors - in a canopy about 12 inches from the water - Calcium- 450 - Alk - 9 -temp - 78 salinity - 1.025 pH -8 - 8.2 ammonia -0 nitrite- 0 nitrate- 0 - .2 Running a Geo calcium reactor, Next reef MR1 media reactor with carbon ( have been running GFO but just switched) Chiller, Octopus Extreme 160 skimmer, sump, RKE controller. About 200# live rock on a 2-3 inch sand bed __________________ Earl

09/30/2009, 09:41 AM	#2
nanojg Registered Member Join Date: Jan 2009 Location: Lubbock, Texas Posts: 2,174	SE bulbs have UV protection in the bulb itself so no uv shield is needed. What are your parameters? Flow? Where are your sps placed? what type of reflector are you using? how high are the bulbs? What are the dimensions of the tank?