Fluval Aquasky for refugium and chaeto growth.

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Hi, I have the above light in my Red Sea 525 sump. I'm not convinced I'm using it to the maximum potential.

What colours are best for chaeto and algae growth? I currently just have it in the standard white setting.


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HK_Fuey

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Reply #1

Take a look at any plant grow light.  That's what you're after.  I believe it's 400-700nm wavelength.  That's blue/red colours, but you need to go off the wavelength, not what you judge by eye to be the right colour.

Asco1104

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Reply #2

Red, green, blue and white  in that order


Tim

fr499y

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Reply #3

You want my opinion on this matter?

I've tried a few different lights from full spectrum 36w LED's, 12w plant LED's, arcadia stretch marine, arcadia stretch tropical, 6500k white led strip, Aquael Leddy 15w LED Daylight and i always seem to go back to the 1w Ikea LED. Why? its a simple 6500k warm white, wide angled led, that fits perfectly where i need it to go.

Put it simply, a 6500k white does the job well, if not better than any "grow bulb". If i could use the arcadia stretch on this sump i would as its nice and slim and doesn't get in the way.
Last Edit: May 2, 2017 9:01:38 am by fr499y

Claire

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Reply #4

Thanks for your views guys.
It's very interesting. I'm not getting any growth yet on the white at all. Maybe I need to spread the chaeto out rather than clumping it up too much and spend time seeing what reacts best.


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fr499y

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Reply #5

what sort of white is it? thats the next thing. Marine white ( 10000k - 14000k ) doesn't have as much red in the spectrum as daylight or warm white ( daylight = 6500k, warm white = 2500k - 3500k )

It could be that you don't have enough nutrients for the chaeto to thrive.

Claire

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Reply #6

http://fluvalaquatics.com/us/product/A3997-aquasky-led/#.WQiMgYHTWaM

I believe this is the one. Excellent sump light but no sign of algae or chaeto growth yet :-(


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Claire

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Reply #7

I noticed our local lfs had a Profito Plant Fertilizer liquid but I'm not sure if it's suitable for a saltwater tank. It has iron in which I read is really good for chaeto.


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fr499y

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Reply #8

don't use anything to try and boost the growth. If you can turn the blues off the light, try it :)

Claire

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Reply #9

Thank you, I'll give that a go I'm tempted to get a timer which would at least regulate the light


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fr499y

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Reply #10

tbf, i've just got in the habbit of turning it on before i go bed, and turning it off when i get up lol Timer is always a good idea though :)

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