Coral compulsion hanging over 40b

I will tell you that light diminishes greatly with hight. dubbling the hight diminishes by more than half there is a formula
 
I mean i think its already 15" off the water . Plus i don't know how to change optics and that would void warranty
 
Jimmy has some of the best customer service of any of the vendors on this site. You should talk to him first before jumping ship...
 
Ok here's a few thoughts.

1. You do know this light is advertised to cover a 30x24 inch area.

2. That being said you can still raise this fixture higher to get better coverage without losing much par. Imagine if you would for a moment some one with a 30" tall tank and has this fixture hung 8-10" over the water surface as recommended the light is now reaching 38-40" of depth not to mention 30" of that is water which reduces par drastically more than air does. Now we have your 40 breeder. It is only 16" tall and you have it 15" above the tank that's 31" total and only 16 of that being water I would say try 24" above the tank I know that seems like a lot but try it for a day see if your coverage gets better and see how your corals react.

3. I hope you realize most LED fixtures are incredibly overpowered. You have 55 3w leds in that light. Most new led users actually end up frying corals because of how powerful they are so raise it higher to get the spread and crank her up.

Hope this helps.

Sent from my SPH-L710 using Tapatalk 2
 
1mg said:
I will tell you that light diminishes greatly with hight. dubbling the hight diminishes by more than half there is a formula
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The formula is the amount of light divided by the area it covers. The lens/angle makes all the difference. So doubling the height only reduces by half if the light is sent at that specific angle. Lasers don't have this issue because they are so focused. A really wide lens could possibly reduce at a greater rate, but it's because of the angle and the time the rays have to follow it. When I put my cc120 over an apogee par meter it was able to pin it off the scale at 18 inches. Pretty sure you can move it up a little. Heck, Smitty put one like it on the ceiling and it worked, lit his whole condo complex too, but the coral was happy. E=MC2 tells us that the speed of light is a constant. It is either going or it isn't. When you turn on your headlights in the fog they don't take longer to work, they just don't work as well. I could be wrong, but I'm not.
 
Herbie said:
The formula is the amount of light divided by the area it covers. The lens/angle makes all the difference. So doubling the height only reduces by half if the light is sent at that specific angle. Lasers don't have this issue because they are so focused. A really wide lens could possibly reduce at a greater rate, but it's because of the angle and the time the rays have to follow it. When I put my cc120 over an apogee par meter it was able to pin it off the scale at 18 inches. Pretty sure you can move it up a little. Heck, Smitty put one like it on the ceiling and it worked, lit his whole condo complex too, but the coral was happy. E=MC2 tells us that the speed of light is a constant. It is either going or it isn't. When you turn on your headlights in the fog they don't take longer to work, they just don't work as well. I could be wrong, but I'm not.
Click to expand...
dam.. nate droppin some knowledge
 
Ok do you build up to that on ur timer and i also have it hung about 17" above tank so should i run them brighter?
 
cammunoz87 said:
Ok do you build up to that on ur timer and i also have it hung about 17" above tank so should i run them brighter?
Click to expand...

mine is the on/off version so I can only envy the aesthetic of your ramp.

I don't think raising them a few inches would require a setting change, but you want to be careful with any changes and the impact to your stock. I'd like others to chime in on this question since I thinks it's always important to get more than one opinion and I may have missed one of your variables.
 
This fixture at 30" from sandbed running at 100% both colors was giving par readings at 180+ in my 75gal... But lost par as you go sideways from fixure as you will with any other fixure IMO..

So you have room to play with on height.. Not sure if you can use the 120 optics on this fixure but that will be my next try before selling this fixure..

Move higher or 120 optics will be your best choices..

Make sure to keep an eye out on the corals with LEDS for bleaching. They are strong!!
 
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