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starting reef tank

This is a discussion on starting reef tank within the Beginner Saltwater Aquariums forums, part of the Saltwater Fish and Coral Reef Tanks category; --> franklinr_casedo wrote: that's great, that way i can save money. i went to lfs and they told me that 20w MH would be enough ...

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Old 12-12-2006, 08:50 AM   #11
 
Quote:
franklinr_casedo wrote:
that's great, that way i can save money. i went to lfs and they told me that 20w MH would be enough for my anemones. am very confused
I think you are talking about a 20w flourescent. MH's dont come in 20w. Or you got it confused and your LFS said 20k MH, which will be good for your anemones. For the MH lighting it comes in 10k, 14k, and 20k. Me I would go with the MH light from the beginning. I learned a expensive lesson not going with MH first. It toke me 2 flourescent fixtures later to relize that MH's were the best way to go. So from me I would recommend MH's.



Quote:
20W seems far too low but then again, MH is still different from fluorescent. I'd go with fluorescent rather than metal halides. MHs need to be hang as they tend to give off much heat.

Yes MH's do give of heat but if you have the proper ventalation your tank temp would never fluxuate more then it would normally. I have 2-250w MH's 6" above the water and the highest my temp has got has been around 83 degrees and that right around when I'm going to turn my MH's off, and I have 765w going into a 120gal.
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Old 12-12-2006, 08:55 AM   #12
 
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Guess that pretty much ends up the confusion.:) I've never touch on MHs rather than fluorescents.

Good luck, Frank.
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Old 12-12-2006, 07:39 PM   #13
 
thanks, its clear now, will use MH.
but usmc as u mentioned, 6" above the water? how will i hang my MH and what particular time will i turn it on? and what other light will i use when MH is turned off?
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Old 12-12-2006, 07:44 PM   #14
 
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Quote:
Originally Posted by franklinr_casedo
how will i hang my MH
The long cord can be attached to the beam. Your tank should be open-topped.:)
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Old 12-12-2006, 07:57 PM   #15
 
I built a canapy for my tank. I had a light fixture that I gutted and attached to the hood. My light schedule is like this.

Actinics: 11:30am-10:00pm
Daylights: 1:00pm-8:30pm
MH's: 2:30pm-6:30pm
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Old 12-12-2006, 09:35 PM   #16
 
it's a big help for me. will use the same schedule then. one more thing, what do you mean daylights? is it flourescent or the ordinary lights?
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Old 12-12-2006, 09:56 PM   #17
 
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Quote:
Originally Posted by franklinr_casedo
it's a big help for me. will use the same schedule then. one more thing, what do you mean daylights? is it flourescent or the ordinary lights?
They're fluorescent. The ones you use for your house.:)
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Old 12-12-2006, 10:54 PM   #18
 
on the schedules u said, just wondering, there are times that those lights are simultaneously turned on? and those three lights inside the canopy?
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Old 12-13-2006, 06:32 AM   #19
 
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Originally Posted by franklinr_casedo
it's a big help for me. will use the same schedule then. one more thing, what do you mean daylights? is it flourescent or the ordinary lights?
The daylights are the 10,000k bulbs, you should be able to get them at just about any lfs.
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Old 12-13-2006, 06:51 AM   #20
 
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They're fluorescent. The ones you use for your house
If you use the ones for your house, who knows what bad stuff would grow in your tank. The modern house flourescent is a T8 or T12 tybe bulb. They use A lower light spectum to light your house. My Daylights are a 10K spectum flourescent type. You can get them from any LFS.

Quote:
on the schedules u said, just wondering, there are times that those lights are simultaneously turned on? and those three lights inside the canopy?
As for this yes there all are turned on at 2:30pm-6:30pm. Thats when I have the most light going to the tank. When the MH's are on you wont be able to tell when the other bulbs are on. But rest asure that the coralline algea and what ever else you put in there are using the spectrums. What the actinics are for, is it simulates the natural blue in the shallow reef in the wild, blue actinics are a very important part of a reef.
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