Diy led help

guppy breeder

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I have a 15g and in the process of diying leds so far i have blue cw and ww.

Im wanting to make it more full spectrum but what other colors do i need and what ratio? Im new this led diy thing so please for give me

Also what colors should be on individual dimmers? I know blue should be on one by itself but would the others be ok grouped together on a dimmer?

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yes, u can put all the non-blue's on the same channel. i would have 1red,3 neutral white, 2 warm white, 2 violet(410-430nm) one a channel. then do 6 royal blue and 2 cool blue on another channel. i read by using warm and neutral whites, u won't need green/cyans.
 
guppy breeder

If you mix the Cree XT-E Cool White and XT-E Warm White you will have a full spectrum fixture. Adding Greens, Reds, Blues add to the spectrum already present. Personally I prefer this mix for a tank your size...

8 Royal Blue (450nm), 2-4 Blue 5 Cool White 1-2 Warm White...Maybe some 410-420 UV / Hyper Violet.

The Exact Bins and channel intensity can vary the colour look significantly. If you use BJB Solderless connectors you can easily swap out a LED to tweak the colour. As long as you are using the same type of LED you can mix colours on the same channel.

Here is a reference of MH Bulbs done by Sanjay along with the Cree Chart. By using the right mix or combination of LEDs you can easily simulate the look of any MH

Note the 450nm spike which is Royal Blue. This is were you should start then add other LEDs to achieve the look you want. Corals have a primary "able-to-use" range of 410-475nm, 420-455nm is best for growth.

figure1-allm80.gif


CreeCoolNuetralWarm_zps6c881d58.jpg


Cree XT-E: Blue is Cool White, Red Warm White

Bill
 
Sweer thanks bill, thats pretty much what i already have

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This article helped me make my choices during my build:
Feature Article: Light in the Reef Aquaria ? Advanced Aquarist | Aquarist Magazine and Blog

I believe adding something to augment the 410-420nm and 660nm range is quite helpful.

Great article I referenced it many times...

As far as the 660nm, I'm very cautious about over doing it as its not present below 10 meters and may promote nuisance algae.

I've experimented with a little for looks and can live without it but some Acans did look slightly better with it.

Bill
 
Have the leds on the heat sinks and a fan to push air in to cool them. Nothing is wired as of yet

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GB-The lights look nice! Now it's time for a solder session. What emitters/ color combo did you decide to go with?

Bill- I agree that a very little of the 660nm goes a long way. I have just 2 emitters w/120 deg optics over a 40B. There may not be any of this spectrum below 33 ft, but some of the reef crest species we keep are found above this depth and the zooanthellea in these corals can benefit. I really love what violet adds to the look of my corals, and it definitely should help photosynthesis as well. They might seem dim to the eye, but that doesn't matter to the coral symbionts!
 
8 blue 6 cw 2 ww on mine and 14 blue 12cw 2 ww on my bros, will have dimmers on both colors, on each fixture thinking of adding 1 uv to mine and 2 to my bros all 3w leds used

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