LED layout and spacing considering rock work height

[malawian]

here is the new layout im considering

 

https://spreadsheets.google.com/ccc?key=0As...w0eWc&hl=en

*sorry cant find a way to turn this into a pic

 

blue is royal Blue

teal is cool white

yellow is neutral white

 

distance between all LEDs is almost exactly 1.5"

 

look at the height of my rockwork (look at FTS)

 

LEDs will be approx. 3" from surface of water, no optics, tank is approx. 14" from surface to sand

Cree XP-E and XP-G run at 700mA on 40 watt adjustable TRP drivers

 

 

1. will there be good color blending?

2. will there be any spotlighting/banding at the upper most rocks?

 

pls ignore the frogspawns at the top of the tank, they wont be that high once the LEDs go in, so dont take that into consideration for the questions above

 

thanks!

 

edit:forgot some crucial info

[fishyj]

What size tank and what types of led's are you using?

[malawian]

BC29, Cree XP-G and XP-E ran at 700mA (all of them, and on dimmers)

 

dont worry, the drivers can handle it

[kevlow]

malawian,

 

I had my led diy fixture 3-4 inches off the water. I did not know about using spray sealant for water proofing. After approx. 6-8 weeks the fixture died from corrosion. Even cleaning, and re soldering will not bring it back. Now I am re building but I will use spray sealant and an acrylic splash guard. Hopefully others will not experience the same set back as I have with a little preventative info. Good Luck

 

Kevin

[malawian]

not a problem, its going in the hood of a biocube 29, there is an acrylic guard and I will be sealing sodder joints with silicone

[malawian]

back to the original question...any thoughts?