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#1
May 29th, 2008, 04:18 PM
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To much light
would 3 400watt DE MH be to much light for a tank??
Current Aquarium(s) Description: 75 gal; Tek light 48" 8 lamp t-5; 90 lbs live sand; 70 lbs live rock Experience in Saltwater & Reef Aquarium Hobby: 2 years 
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#2
May 29th, 2008, 05:18 PM
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Re: To much light
Depends on the tank.In a 75,that much light would probably cause some serious heat issues.
__________________
Live life at full draw. Current Aquarium(s) Description: 125gal SPS tank in the works Experience in Saltwater & Reef Aquarium Hobby: 2+ Other Intrests: Hunting,camping,fishing
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#3
May 29th, 2008, 05:54 PM
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Re: To much light
I agree with Yote, that'd probably be too much for a 75.
__________________
They see me moderatin', they hatin'. Sarah 
Current Aquarium(s) Description: 240-gallon reef with a 55-gallon sump and 35-gallon refugium Experience in Saltwater & Reef Aquarium Hobby: 7 years
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#4
May 29th, 2008, 06:46 PM
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Re: To much light
its going on a 180 or more which ever size i can get
Current Aquarium(s) Description: 75 gal; Tek light 48" 8 lamp t-5; 90 lbs live sand; 70 lbs live rock Experience in Saltwater & Reef Aquarium Hobby: 2 years
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#5
May 30th, 2008, 06:45 AM
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Re: To much light
a 400w mh would be good for a tank that is over 30in deep
__________________
"Knowledge is Power"  James Daugherty 
Current Aquarium(s) Description: 75 gal Experience in Saltwater & Reef Aquarium Hobby: 9 years Other Intrests: fishing,hunting,computers
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#6
May 30th, 2008, 06:47 AM
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Re: To much light
For tank height 18" to 36" use MH 175W / 24" to 36" use MH 250W / 24" to 60" use MH 400W),
__________________
"Knowledge is Power" James Daugherty
Current Aquarium(s) Description: 75 gal Experience in Saltwater & Reef Aquarium Hobby: 9 years Other Intrests: fishing,hunting,computers
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#7
May 30th, 2008, 06:58 AM
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Re: To much light
400 is definitely higher than what most people use.
Current Aquarium(s) Description: 46g bow front Experience in Saltwater & Reef Aquarium Hobby: 11 months saltwater, 3 years freshwater
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#8
May 30th, 2008, 08:45 AM
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Re: To much light
Quote:
 or10" to 16" use 70 watt halides 16" to 24" use 150 to 175 watt halides or higher with some SPS 24" to 36" use 250 watt halides or higher with some SPS 36" to 48" and stretching to 60" use 400 watt halides Over 48" to 60" use 1000 watt halides Always consider halides a potential heating issue.  Current Aquarium(s) Description: 120g SPS Mother Colony Tank, 40 g sump, back wall overflows, 2 closed loop circulation circuits 59X Experience in Saltwater & Reef Aquarium Hobby: 35 years in marine aquarium trade and managing LFS's, 10 years with coral. Other Intrests: Coral Propagation, Civil and Environmental Engineering, Cabinetry, and Reef Systems Development
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