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Old 02-25-2013, 10:02 AM   #1
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Reef lighting for tall 20 gallon tank

I have a tall 20 gallon tank with a Aquatic Life lighting system. I just replaces all the bulbs but my corals don't seem to thrive and the lights cause the tank temp to fluctuate. Would upgrading to a Nano LED lighting system make a material difference? Given they are almost $400 I wanted to check with you as I just replaced all my bulbs in the 1 year old Aquatic Life system. Thanks
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Old 02-25-2013, 11:27 AM   #2
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Your tank is way to tall to get even the slightest bit of a good par reading with that fixture.. Id get a new tank IMHO just because its not worth upgrading lighta for that tank at all. Gonna always be having the problems you stated about corals with that setup. Keep the fixture, get a smaller tank. Or get a bigger fixture and a normal 20 gallon long tank
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Old 02-25-2013, 11:35 AM   #3
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Thanks Dimdim, this is helpful.
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Old 02-25-2013, 11:36 AM   #4
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Your tank is way to tall to get even the slightest bit of a good par reading with that fixture.. Id get a new tank IMHO just because its not worth upgrading lighta for that tank at all. Gonna always be having the problems you stated about corals with that setup. Keep the fixture, get a smaller tank. Or get a bigger fixture and a normal 20 gallon long tank
What is an "IMHO"?
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Old 02-25-2013, 11:42 AM   #5
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Quote:
Originally Posted by Ctb View Post

What is an "IMHO"?
IMHO= In My Honest Opinion
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Old 02-25-2013, 12:18 PM   #6
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Your welcome ! Sorry to be the bearer of bad news but yeah how big is that aquatic life fixture? 18 inches by the looks of it?
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Old 02-25-2013, 12:39 PM   #7
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Dimmable LEDs would solve your problems and would not have to spend anywhere near $400.

Check out this thread (last 5-10 pages). people mention the taotronic or reefbreeder LEDs. I have them and they work great.

http://www.aquariumadvice.com/forums...ck-239661.html
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Old 02-25-2013, 12:40 PM   #8
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Leds are an option, but you will still be struggling if you buy cheap leds. Al sol nano would be good i think.
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Old 02-25-2013, 12:44 PM   #9
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Not true. I have one cheapo 120w LED panel on a 40 gal and i grow everything including sps just fine. If you read that thread. Many people have done well with them even hanging the 10" above their deep tanks. There some even claiming that they have to dim theirs to 30% because they are too bright.
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Old 02-25-2013, 12:53 PM   #10
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1 over a 40 gall? What are your optic lens angles? If im not mistaken u have shadows in your tank from the panel not steetching across the whole top and if u have 90degree or smaller GL long term i almost did this too as i have a 40 breeder. But a 6 bulb t5 works better and i trust 234 w more then i trust leds and theyre chinese $#!+
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