Why do my blue corals always turn green?

[saltyfilmfolks]

I was in the past....in the last 6 months I switched to a lower alk salt and have bumped up my nutrients. I know that was a major issue back then.....maybe I am just being gun shy now. Previously I would walk by my tank too quickly and something would start to bleach lol.

interesting. right now my tank is N/P FAT because of that same fear and running lower alk and higher light because of that gun shyness. Curiously my Tricolor Valida has finally turned tri color like you see in the Ad's. (depending on what ad you look at lol).

 

[Dawsokj1988]

Lighting is Hydra 52HD's.


Talking about the tank and spectrums:


3 month update:


9 month update:



TotM (was his previous tank, but discusses switching over to LEDS)

http://reefkeeping.com/joomla/index.php/current-issue/article/164-tank-of-the-month

His website:
http://www.aquaticlog.com/


Cheers!

 

[Donovan Joannes]

@saltyfilmfolks too bad I don't keep a log on my led color changes I have made. But it's a painstaking task to see the effects, some are fast (2 - 3 weeks) but mostly took months. It's very rewarding to see shades of color on normally montone colored acros.

 

[Chris Kelly]

I def believe you.
Once I understood what frequency was most effecting what cartenoid pigmentation I suspected an overdose)in my case(greening), and that increases and decreases would effect pigment production.



Mee too!


What light? Ther's some running kessil, but the blue is in fact not all blue

Gotta Link?

overdose of what?

 

[saltyfilmfolks]

overdose of what?

Blue is what I suspect. In the 440 to 456nm range spicifily in my case.

 

[Abhishek]

interesting. right now my tank is N/P FAT because of that same fear and running lower alk and higher light because of that gun shyness. Curiously my Tricolor Valida has finally turned tri color like you see in the Ad's. (depending on what ad you look at lol).

@saltyfilmfolks - First of all , is that A hasselblad 500cm ? I own a 500 and a 503 and love them probably more than my reef

Anyways, coming to the high nutrient and blue spectrum stuffs, how high are you running now ? I stopped all my GFO and carbon and having only skimmer run to take nutrients higher. More PE and seeing colors improve. Right now am sitting at 12 ppm for nitrates and 0.1 for phosphates.
I need to look into teh led stuffs as my reefbrites are on for 10 hours and halides for 6 hours . May be cut down reefbrites to 8 hours a day - 1 hour before halide and 1 hour after halide .

Regards,
Abhishek

 

[saltyfilmfolks]

A hasselblad 500cm ?

Oh, your good! No the camera Pictured Is a 1940's Zeiss TLR, the camera taking the picture is a '68 Mamiya c330 w the 8omm bluedot. Its as close to the late 60s Hassy as I could afford.(im holding the release cable in my hand and using the Zeiss finder as my focus mark, the field was literally 1')

And yes Im running close to the same, my N/P have been higher lately as I just killed off a bunch of bryopsis. The coral is growing like a weed, but I have just a bit of brown in the skin where it should be pale. Most is the classic purple.

Without a meter(par or lux) it would be tough to gauge your DLI. As stated above

@saltyfilmfolks too bad I don't keep a log on my led color changes I have made. But it's a painstaking task to see the effects, some are fast (2 - 3 weeks) but mostly took months. It's very rewarding to see shades of color on normally montone colored acros.

It takes some time to see the results. Mine has taken a few months. My "green burn" took two at least to fade.

Im not familiar enough with the reef rights, do they not dim or ramp? Your photo period seem fine to me.

 

[Abhishek]

Oh, your good! No the camera Pictured Is a 1940's Zeiss TLR, the camera taking the picture is a '68 Mamiya c330 w the 8omm bluedot. Its as close to the late 60s Hassy as I could afford.(im holding the release cable in my hand and using the Zeiss finder as my focus mark, the field was literally 1')

And yes Im running close to the same, my N/P have been higher lately as I just killed off a bunch of bryopsis. The coral is growing like a weed, but I have just a bit of brown in the skin where it should be pale. Most is the classic purple.

Without a meter(par or lux) it would be tough to gauge your DLI. As stated above

It takes some time to see the results. Mine has taken a few months. My "green burn" took two at least to fade.

Im not familiar enough with the reef rights, do they not dim or ramp? Your photo period seem fine to me.

Ofcourse , I see !! Yes I used the Mamiya C330 but its kind of heavy compared to the Rollies . Hassleblads were my first love even before reefing and I spent everything I had to get them .
May be we should chat offline !!! Nice to see an analog enthusiast.

Regards,
Abhishek

 

[Donovan Joannes]

@saltyfilmfolks, mine doesn't ramp up/down. I have 3 channels, Blue/White/Warm multi colored on Arduino controller. Blue turns on at 5am till 9pm, white from 7am till 7pm, warm multi colored turns on at 12pm till 17pm but white channels turns off/on randomly during this period for 10 to 20 minutes to simulate clouds passing by.

 

[bfliflet]

I tested with a par meter and can say that blues do not carry the same par as whites.

Are you correcting your PAR values based on the color being measured. Some PAR meters don't measure blue/violet/uv very accurately. In some cases it can report ~60% low...

http://www.advancedaquarist.com/2013/2/equipment

 

[Lasse]

@Abhishek and @saltyfilmfolks I hope you know where the Hasselblad orginate from? Your right - Gothenburg - my home town

This house was the start of the Company

Sincerely Lasse

 

[dragon99]

I don't believe you can have too much blue light. Not to say adding white won't change things, but just having blue won't hurt the coral.

Jason Fox uses only blue light. Two of his propagation tanks use Reefbrite blue LED's and Actinic T5's. No white/red/green at all!


I'd encourage watching the whole session if you have the time.

 

[saltyfilmfolks]

I don't believe you can have too much blue light. Not to say adding white won't change things, but just having blue won't hurt the coral.

Jason Fox uses only blue light. Two of his propagation tanks use Reefbrite blue LED's and Actinic T5's. No white/red/green at all!


I'd encourage watching the whole session if you have the time.

I will but consider without a spectrometer you cant see whats in blue, or white for that matter.

In my case the Blue IS a very very narrow band, once I lowered the time of exposure the green went away.

Ill definitely watch.

 

[Dawsokj1988]

What kind of blue LED are you running?

 

[saltyfilmfolks]

What kind of blue LED are you running?

WHom are you asking?
(it helps to quite or tag with at @username)

 

[Monkeytank]

Do you have a potassium deficiency in your tank?

 

[Dawsokj1988]

@saltyfilmfolks Sorry, was asking you. I was curious which blue LED's have a very narrow band.

 

[Dawsokj1988]

I will but consider without a spectrometer you cant see whats in blue, or white for that matter.

If the specific LED within the fixture can be identified, we can usually look up the spectrum break-down of whatever LED is being used.

 

[saltyfilmfolks]

If the specific LED within the fixture can be identified, we can usually look up the spectrum break-down of whatever LED is being used.

Yes true. But I would have to look up either the declared values or use a spectrometer. And it would be really difficult even then to precisely identify the offending Nm. We could assume it was the Highest peak visible or was the combined frequency narrow spread for just too long. Too much violet or Aqua. Hard to say. I'm favoring between those two as that's the only color I reduced in time. I actually increased overall intensity.
The ai sol whites are an Aquablue btw. The Lisa time I saw green burn it was more Aqua as well but less than the sol.



I hope it's understood I'm totally blaming the user not the light.
But it is totally possible the ratio the manufactures used has a higher ratio of a blue. I'm using the factory set ups at even one to one ratios.

 

[stevenlu]

Hey guys, I know we are talking about blues turning green, but my homewrecker has turned all green as well.

When I first got it the tips had some pink to it, now the whole coral has turned completely green for some reason. Any suggestions?

I run t5 + Radion hybrid. Radions at 55 maximum intensity with AB+ program and 2 blue + and 2 coral + T5s.

Thanks a lot!