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Discussion Starter · #1 ·
What would be suffucient LED lighting for a 65g reef tank, I've been told 120w would do the trick....what you think?
 

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Discussion Starter · #3 ·
It's a normal 65g just like the standard 90g...I have everything from purple Monti to chalice to Zoa to brain coral to polyps...so a good variety of coral
 

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1 led for every 10-15 square inches... so, 57-84 LED's depending on what you intend to keep...

In your case, I would shoot for 75-80...
 

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75 -80 you would be able to keep pretty much anything you want. Youou could cut that in half and have an ok light. Me personally, I go for overkill when it comes to LEDs
 

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LOL... I thought you were going to add to the conversation after the quote...LOL
 

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Whats the surface area you need to cover? I feel like one 3W LED can light more than tham 10-15in2

My surface area is 48x13=480+154=624 in2 and i have 28 LEDS over it. 624/28= 22.28in2 per 3 watter. Also I have LEDs set up with 55deg lenses and they run at 50% power.

LEDs are easy to underestimate because they forget that all of the LED light energy is directed toward the tank vs a MH that emits light energy in 360. Known as an omni emitter.
 

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Orphek just recommended I use 2 of their 120w units on a 90 gallon tank. I just received them. They only draw 0.92 amps per unit.
David
 

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Whats the surface area you need to cover? I feel like one 3W LED can light more than tham 10-15in2

My surface area is 48x13=480+154=624 in2 and i have 28 LEDS over it. 624/28= 22.28in2 per 3 watter. Also I have LEDs set up with 55deg lenses and they run at 50% power.

LEDs are easy to underestimate because they forget that all of the LED light energy is directed toward the tank vs a MH that emits light energy in 360. Known as an omni emitter.
I totally agree. The put off a lot of light and over a fairly large area in comparison to their size.

With your 28 LEDs, do you get a lot of shadow areas?
 

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I have 38 over my 33 long....1:1 RB:CW, eBay cheap LEDs with MW drivers....running 26 of them @ 700mA, and 12 of them @ 1000mA


Remember, you can dim them, but you cant make them brighter...

1 LED:10-15in2 is an average / general rule of thumb... coming from the fixtures of alot of builds out there...
 

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Discussion Starter · #18 ·
I'm considering the Reef bliss unit has 120w on my 65, I've been told by them it's perfect for my tank
 

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what are the dimensions of a 65 in inches... I know you said it was the same as a 90, but that kinda doenst make sense...a 75 is the same as a 90, just shorter... Can you give us exact measurements please?
 

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Discussion Starter · #20 ·
Ya it just shorter than the 75, same depth and width of a 90



36*18*24
 
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