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01/10/2007, 06:12 PM
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#1 |
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Registered Member
Join Date: May 2005
Location: Pembroke Pines, Florida
Posts: 746
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MH coverage area
Can anyone please tell me the approx. coverage area a 250MH HQI puts out at an average distance of 6inches above the tank? My tank is 72x18x29. I'm thinking of going with 3, 250watt MH's combo'd with T5's. Could I use 2 175 watt MH's on each end and one 250 in the middle to save on electricity? Any suggestions would be greatly appreciated. Thanks
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01/10/2007, 06:14 PM
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#2 |
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Moved On
Join Date: Jan 2002
Location: NW Phoenix
Posts: 16,621
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Depending on the reflector its about 2'x2' per bulb.
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01/10/2007, 06:14 PM
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#3 |
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Registered Member
Join Date: Oct 2004
Location: Bay Area
Posts: 7,927
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__________________
Hair algae is my Macro algae. |
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01/10/2007, 06:17 PM
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#4 |
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Registered Member
Join Date: May 2005
Location: Pembroke Pines, Florida
Posts: 746
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Thanks guys...that helps alot
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01/10/2007, 08:00 PM
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#5 |
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SKIMMER WHORE
 
Join Date: Sep 2001
Location: Fredericton, NB, Canada
Posts: 1,564
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250's I have the aqua medic over a65 gal and i have lots of light its going to depend on the height that you have your lights like alredy stated. Heck i ran 2 400's over my old 170 that was 5 feet long. Im really happy with the Hqi on the tank I have the louvers that hang on the side to help redirect the light into the tank...
__________________
Doesn't matter how much you have been reading, until you take the plunge. You don't know as much as you think. Moved from the WEST to the EAST |
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01/10/2007, 08:01 PM
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#6 |
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Registered Member
Join Date: Mar 2005
Location: Ball Ground, Ga.
Posts: 1,333
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would a 250 watt HQI fixture with 2-24" T5 actinics be ok over a 36"x36" cube?
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01/10/2007, 08:50 PM
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#7 |
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Registered Member
Join Date: May 2005
Location: Pembroke Pines, Florida
Posts: 746
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is it safe to say the higher the light is mounted over the tank, the larger the footprint of light? I realize it would be less intense the higher it is mounted.
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01/10/2007, 08:57 PM
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#8 |
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Registered Member
Join Date: Jul 2006
Location: Seattle, WA
Posts: 394
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175s on the end and a 250 in the center should work just fine for coverage, but you may have a slightly tougher time getting colors to match exactly... if you are worried about that.
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01/10/2007, 09:49 PM
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#9 |
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Registered Member
Join Date: May 2005
Location: Pembroke Pines, Florida
Posts: 746
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never thought about that...will it make a big difference?
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01/11/2007, 04:59 AM
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#10 | |
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Registered Member
Join Date: Mar 2005
Location: Ball Ground, Ga.
Posts: 1,333
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Quote:
any opinions on this? |
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01/11/2007, 07:12 AM
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#11 |
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Registered Member
Join Date: Apr 2001
Location: Holly Springs, NC
Posts: 1,703
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im running 2x400W DE bulbs on my 36x36x30 cube and i think its perfect...lots of light in the middle and the edges are a little darker for lower corals. these are icecap horizontal pendandts. heres a pic. the tank is still a little cloudy in these pics as it was the day after i added the rock. the light spread is a little better now.
front view  side view 
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