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Old 03-23-2010, 07:59 PM   #1
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Upgrading my lighting

Ok, So im updating my tank to a 4x2x2 from a 2x2x2 in the next couple of weeks. I've come across a nice, All in one metal halide fixture. Its 4ft and has to MH globes and the blue t5's in it as well. Im quite sure they're 150w 10,000k MH globes.
My question is, Im running a SE 250w 20,000k on my 2x2x2 at the moment, Will it be better to buy to new reflecters and two 250w globes? OR will the single unit be enough? I'll change the globes to 250w if possible and to 20,000k.

But just curious on whats better for corals as im planning on growing alot from hard to soft.
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Old 03-23-2010, 08:26 PM   #2
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But just curious on whats better for corals as im planning on growing alot from hard to soft.

Not with an EMP you don't. He will love a soft or crunchy coral snack.
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Old 03-23-2010, 08:29 PM   #3
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EMP = ?

I need to know asap whats better, As this all in one fixture is auctioning off soon.

Thanks.
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Old 03-23-2010, 08:33 PM   #4
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EMP=Emperor Angel. :P
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Old 03-23-2010, 08:34 PM   #5
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Go post the question on melosu's profile.
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Old 03-23-2010, 09:27 PM   #6
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Just make sure your ballast can handle 250 watt bulbs. If they have 150 watt bulbs now it might not take the others. Your MH`s have a 2 foot long footprint so if you have two it will cover a 4 ft tank.
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Old 03-23-2010, 11:39 PM   #7
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As Mike said, you can't run 250w bulbs with a 150w ballast. Also, you called them "globes", so are you referring to a single ended (SE) mogul based bulb that screws in or a double ended (DE) bulb that snaps in place? The reason being, 150w bulbs come in the DE variety only and 175w bulbs come in the SE variety only. 250w comes in both SE and DE.
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Old 03-23-2010, 11:58 PM   #8
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Thanks for the input.

Im pretty sure they're the snap in ones, Im just curious will i get the same growth and look from a 150w MH?

Will i still be able to grow anything under them?

The light doesnt come with a ballast, Im pretty sure its all inbuilt as one. Because it just has a power cord comming from the lighting unit.

Thanks again.
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Old 03-24-2010, 02:57 AM   #9
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Go with the 250-watt bulbs with a tank that is 2' deep tank. You will be able to use any 250watt reef bulb.
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Old 03-24-2010, 07:45 PM   #10
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Ok cool, So i'll scrap the all in one lighting unit and keep my two 250w ballasts, And run 2 250w SE globes, With new reflectors.

Now, Does anyone have a good idea of how to suspened to reflectors?

I was thinking of screwing them to a nice peice of wood, And suspending the wood? Work out all the measurements and what not.
Because with this tank i dont want a hood.

thanks.
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