dainiusiva
New member
Peter, thanks for your detailed take on LED's
Coral Tank from Canada (1350gal Display Tank)
- Thread starter nineball
- Start date
- Status
nineball
Active member
I'm not sure who to attribute this to but the single greatest generator of new species in the world is the coral reef. There are in fact greater documented finds of new species previously unknown in the worlds rain forests but those are species preexisting over the millennia that we have just recently discovered.
I believe it is the chaos of life on and around reef structures that gives rise to new conditions sponsoring new species development. Change is a fact of life on a reef and in some ways is as much an element to be recognized in the hobby as good nutrition, among other things. Accepting change as a fundamental building block of our marine ecosystems is a challenge to our search for best practices.
Replication and change are somewhat contradictions in terms when considered in targeting best practices and yet as noted here success is recognizing the impact of both on the balance we all aspire to in the hobby.
Peter
nineball
Active member
I realized after writing about the LEDs that I should give equal recognition to the folks at aqua-medic who provided an excellent Metal Halide / T5 solution that was completely silent, low profile and excellent lighting solution for the technology. As Mr. Wilson and I have commented recently, it is impossible to turn off the metal halides and not notice that something is missing. This may be only affecting the aesthetics but somehow I very much doubt it. Until we can experiment our way out of it our best practice will continue to be the blend of Aqua-Medic and Orphek technologies as our chosen best practice.
Peter
SnowManSnow
Member
how about a full tank shot ?
its hard to scroll through and find it
its hard to scroll through and find it
nineball
Active member
http://www.reefcentral.com/forums/showthread.php?t=1811725&page=133how about a full tank shot ?
or look waaaaay up on this page......
peter
mr.wilson
.Registered Member
Larger worms like spirobrachus (xmas tree) fair well to the dip/bath. The same is true of larger crabs and mantis shrimp. The big stuff needs to be removed physically. Killing acro crabs is a common side effect of oxidizer baths.
CalmSeasQuest
Active member
Dave - Those of us close enough to the border to get CBC (channel 9 loooong before cable) certainly do
Peter, a school of Idols? - You Sir, have likely never possessed a small idea. :thumbsup:
Quantum Sensors
Quantum Sensors
Every time I searched for something on RC, this thread came up at or near the top of the results, so I finally read it all. Great information, especially for a newcomer like me - thanks for sharing.
I noticed a post recently about using quantum sensors, so I thought you might be interested in the following response I received from Apogee regarding their current unit and LED applications.
"Apogee quantum sensors underweight blue light, and as a result, photon flux measurements for blue LEDs will be too low. Also, the quantum sensors overweight red light up to a wavelength of approximately 650 nm, above which they do not measure, and as a result, photon flux measurement for red LEDs will either be too high (if the LED output is all below 650 nm) or too low (if a non-negligible fraction of the LED output is above 650 nm). Our quantum sensors will likely provide a reasonable measurement for white LEDs because they are broadband, and because the sensors are calibrated under CWF lamps. However, because of the diversity of LED lighting systems the precise errors have not been quantified. The current spectral response of our quantum sensor can be viewed on our website (http://www.apogeeinstruments.com/quantum/spectralresponse.html). We are currently working on better filtering in order to achieve a sharp cutoff at both the 400 and 700 nm wavelengths, but this improvement is still a few months away.
That being said, Apogee quantum sensors can be used to measure the relative output of an LED or bank of LEDs, in order to track variability in output with time or temperature for example. However, quantum sensors should not be used to characterize the absolute output of LEDs (except for the possibility of white LEDs), to compare one LED to another, or to determine photon flux for plant growth for example."
Quantum Sensors
Every time I searched for something on RC, this thread came up at or near the top of the results, so I finally read it all. Great information, especially for a newcomer like me - thanks for sharing.
I noticed a post recently about using quantum sensors, so I thought you might be interested in the following response I received from Apogee regarding their current unit and LED applications.
"Apogee quantum sensors underweight blue light, and as a result, photon flux measurements for blue LEDs will be too low. Also, the quantum sensors overweight red light up to a wavelength of approximately 650 nm, above which they do not measure, and as a result, photon flux measurement for red LEDs will either be too high (if the LED output is all below 650 nm) or too low (if a non-negligible fraction of the LED output is above 650 nm). Our quantum sensors will likely provide a reasonable measurement for white LEDs because they are broadband, and because the sensors are calibrated under CWF lamps. However, because of the diversity of LED lighting systems the precise errors have not been quantified. The current spectral response of our quantum sensor can be viewed on our website (http://www.apogeeinstruments.com/quantum/spectralresponse.html). We are currently working on better filtering in order to achieve a sharp cutoff at both the 400 and 700 nm wavelengths, but this improvement is still a few months away.
That being said, Apogee quantum sensors can be used to measure the relative output of an LED or bank of LEDs, in order to track variability in output with time or temperature for example. However, quantum sensors should not be used to characterize the absolute output of LEDs (except for the possibility of white LEDs), to compare one LED to another, or to determine photon flux for plant growth for example."
nineball
Active member
Thank you very much. This is very helpful, especially coming from the company. Honesty like this is most welcome and respected. I agree that one very helpful attribute is to measure relative changes in bulb strength over time. I suspect too many of us don't and fail to properly diagnose changes in coral health and behaviour as a result.
I will certainly be watching for the next release of the Apogee product as they appear to be honing in on our focus of interest.
Thanks again for taking the time to provide this info to the group. This dynamic is, in my opinion, what makes this culture so positive and the quality of info so high.
Peter
Peter,
I want to thank you for your warm welcome and possibly clarify my statements about the four grand masters and "mother nature".
I had my first saltwater aquarium over fourty years ago ( no such thing as a "reef tank " back then. Being fotunate enough growing up in close proximity to the Florida keys I collected all my own fish and corals. The corals where mainly for the purpose of feeding anglefish and other " picky" feeders, nothing elaborate, the flats where coverd with rose and finger coral back then. If for whatever reason I lost a fish , which didn't happen very often , it just tore me up inside because I always had that lingering image of seeing it swimming around happy and beautiful in it's natural enviornment and I always questioned myself if I had the right to take them from their home.
We often speek about this endeavor " reefkeeping " as a hobby and the animals we place in them as " pets" .My comments about " mother nature " was just me speeking with my " heart " so that we should never lose sight of the fact that we are dealing with often very rare and " wild" animals who are taken away from their natural envirnment and being displayed in a very unnatural environments however beautiful that may be.
I certainly ment no disrespect to you , your masters plan or especially to Chingchai , who I greatly admire and is most worthy of any accolades that are bestowed on him. If my words were interpeted that way, I apologize . I'm not good with words and that fact that I can converse with someone of your stature is both humbling and amazing to me. If we had the internet fourty years ago, I may have been able to keep those corals alive a little longer!
I'm off to finish Chingchai's thread .
Nick
Just finished reading 276 pages of your TJ. It is absolutely a work of art. gives you a good feeling when there is such a wide community in our chosen hobby. I am only a small fry in this game I have FOWLR tank for the last 3 years, my tank is 200Gal. I also read ChingChai's TJ and my jaw nearly dropped to the floor. I am jsut about build another tank 200Gal, hopefully I can successfully introduce some LPS and SPS.
Congratulation for a fantastic tank.
PS I was admiring your concealed ceiling lighting and the lighting under the tank. Are those Flexible SMD RGB LED strips lights??? If not would you be able to point me in the right direction to get some info on the lightings. I am interested in doing the same to my dining room ceiling.
Congratulation for a fantastic tank.
PS I was admiring your concealed ceiling lighting and the lighting under the tank. Are those Flexible SMD RGB LED strips lights??? If not would you be able to point me in the right direction to get some info on the lightings. I am interested in doing the same to my dining room ceiling.
mr.wilson
.Registered Member
Thanks for posting the information, I was not aware of that. Quantum meters and LUX meters have their limitations, but they at least offer a yardstick and comparative number when comparing similar lights or experimenting with optical lenses. The Orphek LED lights we are using are 40% blue and are a special order, as they come standard as 30% blue. The Orphek white LED is 16,000K with a relatively low amount of light in the higher nanometer red spectrum so we can safely assume that our quantum meter readings are conservative.
mr.wilson
.Registered Member
chingchai
Premium Member
Great thread guys, definately not a quick read... but an hour a day for a couple weeks and i am through it. Thank you nineball for sharing this journey with us all. Tank came out beautifully and seems to improve with every post... congratulations... and thanks for all the great info and great attitudes that made this thread a pleasure to read.
Nick
Nick
SeattleReef
New member
That may be true but Peter and his "A" team are trying for "best" practices and he might be able to pull it off...that I believe is in part what he is trying to do instead of doing what others say can't or shouldn't be done.
Mr. Wilson - Do you have any experiences with Moorish Idols kept successfully in home tanks?
nineball
Active member
nineball
Active member
Thank you Nick and welcome to our group. To have read this thread has become a badge of honour for some and as such makes you a welcome addition by many on this thread.
Peter
- Status
Similar threads
