LEDS to grow acros

[Salty Dog]

Im a total novice with LEDs and Im building a 500g sps tank. Im really would like to go the LED route but Im not convinced. Also is there a fixture or is all this talk a DIY deal?

 

[that novice guy]

Well what is your tank demensions

 

[GnarleyMarley]

My sps growth rate after 2 months under radions

https://www.reef2reef.com/forums/led-lighting-specific/110804-2-months-growth-under-my-gen.html

 

[ReefLEDLights]

I've been planning on upgrading my led lights. I'm looking to add 24 410-420nm leds over 6'x2'x20" tall tank. Is 24 enough? Would 48 be too many? They are double chips at ledfedy.

I have 72" SPS Tank and added 24 of the Semi P2NU Violet LEDs and did notice a slight improvement in colour. I would start with 24 knowing you can always add more later if their double chips are not powerful enough.

Bill

 

[gqjeff]

I just added 8 UV to a 60 gallon cube and they r getting owned by the Vega and RB bar I have on the tank... Can't really tell they r on at all.

 

[billyzbear]

Thanks Billl. Where did you get your leds? I searched, P2NU Violet LED. I didn't find anything.
I'm not a guru. In my testing lower mn gets "overpowered" easy. In my testing two t5 blue+ overpowered 48 rb leds. The blue+ took away most of the glow from coral.

 

[ReefLEDLights]

Thanks Billl. Where did you get your leds? I searched, P2NU Violet LED. I didn't find anything.
I'm not a guru. In my testing lower mn gets "overpowered" easy. In my testing two t5 blue+ overpowered 48 rb leds. The blue+ took away most of the glow from coral.

PM Sent with link

Bill

 

[ihigh]

so in theory, how much % would vegas color give growth over ai sol blues?

 

[andr3w]

I have a led light that has "full spectrum". I don't even use the red or greens. My UV's are at %45 warm whites are at 48%, 440 and 470's are running at %78 for five hrs a day. I have great color and groth.

 

[solar]

So are there any need for 3500k whites?

 

[ReefLEDLights]

So are there any need for 3500k whites?

The Warm Whites will offer a warmer more Full Spectrum look. With them you should not need Red, Green or Yellow.

They also have less of a 450nm spike so you will have slightly less PAR than the Cool White.

I'm experimenting with mixing them in and they do offer a slightly different look. Some may like it more others will not.

Bill

 

[sanchoy]

Currently testing taotronics 212 vs my old mh setup, and the results are sps is growing and loving the light.


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[billyzbear]

It's a little early to say if UV grow coral. I ended up with 28 double UV chips on my 150g tank 6x2x20". Two per square foot with a few extra because I could fit them on the string. They look totally cool, really helps with the coral glow. Mostly greens but others too. I also added 16 nw and 14 ww, I kept 2 4' t5 actinic+ and 48 rb. The leds are all adjustable. Nw looks good all the time, the ww add red if you go too much it looks purpleish but really helps. At mid day, nw 50% and ww 70%. The ww don't look very good without t5, with just rb and uv, nw are at 10%.
Been thinking of adding cyan and blue, 6 of each to help bring out some color of rose bouble tip.

 

[jedimasterben]

It's a little early to say if UV grow coral. I ended up with 28 double UV chips on my 150g tank 6x2x20". Two per square foot with a few extra because I could fit them on the string. They look totally cool, really helps with the coral glow. Mostly greens but others too. I also added 16 nw and 14 ww, I kept 2 4' t5 actinic+ and 48 rb. The leds are all adjustable. Nw looks good all the time, the ww add red if you go too much it looks purpleish but really helps. At mid day, nw 50% and ww 70%. The ww don't look very good without t5, with just rb and uv, nw are at 10%.
Been thinking of adding cyan and blue, 6 of each to help bring out some color of rose bouble tip.

I can tell you right now that UV light will not grow coral, no experimentation necessary. UV light is damaging at the DNA level.

You are most likely mistaking violet light for ultraviolet. 430nm is the primary driving wavelength to photosynthesis, as it is the peak of chlorophyll a and drops off sharply after that, and chlorophyll c and peridinin are required to make up the deficiency.

Cyan Light helps with color rendition and bringing out certain non-fluorescent reds.

 

[billyzbear]

The leds I got are 410-420nm. They list them as UV. You want to call them just violet, ok. They look pretty ultra to me

I have seen lots of graphs on what corals want, way too much. There is a massive peak at 417nm.

My rose bubble tip doesn't look the same as when I had t5's. I was hoping adding some cyan would help bring out his red better. Would the blue mess it up?

 

[ReefLEDLights]

The leds I got are 410-420nm. They list them as UV. You want to call them just violet, ok. They look pretty ultra to me

I have seen lots of graphs on what corals want, way too much. There is a massive peak at 417nm.

My rose bubble tip doesn't look the same as when I had t5's. I was hoping adding some cyan would help bring out his red better. Would the blue mess it up?

Anemones respond different than coral.

Blues and Royal Blue will give it more PAR or light. I would give it a little time as LEDs are brighter than advertised.

Adding Cyan or even Red would be like adding makeup...

My RBTA lost a bit of colour then came back...

Bill