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Old 02-18-2014, 07:46 PM   #11
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Yes the PAR38s should work for most. You will need to find a fixture for them though. There are a wide variety of PAR38s on the market from Kessils to Rapid LED.
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Old 02-18-2014, 07:49 PM   #12
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If you go with a par38 you willmost likely need 2 to light the entire tank. I had a single lamp over a 4g and it was perfect. Even worked for my 5g but I would say the 20g is too big for a single light bulb.
I used a desk lamp i bought at target to put my bulb in.
As others have asked, what is your budget? That will dictate which fixture you should get.
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Old 02-18-2014, 07:50 PM   #13
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I would still go with a single fixture though. IMHO it's way better.
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Old 02-18-2014, 07:53 PM   #14
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Kessils aren't par38s. They use a dense matrix array rather than diodes.
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Old 02-18-2014, 08:10 PM   #15
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I found a light on eBay that's about 150$ which is about the highest I would go for a light. It's an led light that is dimmable. It's 120W watt...would that be fine for the 20
Gallon tank?
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Old 02-18-2014, 08:12 PM   #16
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That will do fine just make sure it's the dimmable version as you will need to run it pretty low. At that budget none of those other fixtures will work
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Old 02-18-2014, 08:23 PM   #17
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Well I mean I could go higher but nothing over 300$ for sure..would these lights support coral at all?
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Old 02-18-2014, 08:29 PM   #18
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Yes they will let you keep whatever you want
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Old 02-18-2014, 08:38 PM   #19
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I also have an extra t5 fixture but the only problem is it's 48 inches long so obviously much bigger then the 20 gallon tank...think I could use that?
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Old 02-18-2014, 08:39 PM   #20
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Reef tank

Yes those are what we call "Ebay LEDS". Many people use them and have had great experiences.

WARNING: Some say the full spectrum has an extremely purple hue.

Check the chip on the LEDS because some of them use Epistar chips and not Bridgelux.

One of the blue/white fixtures will work if you would like also.

Keep in mind the hanging kits that come with these aren't the best. Buying some extra cords may help some. However there are some stands for them out on EBay.

Carey, an aquarium advice user who has replied earlier in the thread, has had lots of experience with these. I would ask her for opinions or pictures you need on the lights.

Since the tank is a 20h (Like Mine) you will need to dim it down quite a bit. I have been told that it may be under 50 percent. This light can burn through corals easily. You will have to acclimate them very well. (That's what I have been told.)

It has been said that they do break, but are simple fixes. You may need to replace ballasts or things like that every once in a while.

These are certainly a good choice, but they are not your only option. Keep in mind "You get what you pay for."

Sorry for such a long post, haha.

Bribo: Sorry about the kessil thing. My mistake I hate to give out false information .
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