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HD Burn Videos - Lasers Being Tested For Use In Marine Aquaria

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Here are a few short "burn" videos (HD) showing how lasers are being tested for use in marine aquaria. These feature a SurvivalLaser II (1800mW / 445 nm)...





Anyone interested in learning more - The thread exploring the use of lasers in marine aquaria is available at http://www.reefcentral.com/forums/showthread.php?t=2101768
 

joenobody

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Hello Tom,

I have been following your laser use in fish tanks and as a tank and laser lover, it's been fun reading thru it all.

After reading all you posted at RF, I see alot of undo fear.

Yes, lasers can be dangerous and should be treated as a firearm, but safe if used with common sense and edjucation.

I believe a 750mw+/- 405nm bluray will do just as good a job, at half the laser power or less of your 1.8 445, thus making it safer to operate.

There are alot of tank guys who have used much lower powered 445's and 405's with success. You went for the top big dog in power, lol, can't blame ya.

But 405's are single mode diodes and have a great small single mode round dot that can be focussed much better than the blue 445's that are actually a line shaped output called multi-mode. And 405 photons are more energenic than 445.

And no, these wont hurt the tank glass, regardless of what it is made of.

Best of luck and i will keep track of your progress.

...
 
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Thanks very much for your post Joe. I've read a little about the 405 and the ability to obtain a finer focus. I think the next purchase I will make is a 405, ideally built in a waterproof host. (can anyone recommend sources and or specific models?) I still thinking the most power available is a plus for this usage. Here are my thoughts - As I'm still brand new to lasers - please correct any assumption I may have.

Cooling effect of water requires higher power output - Because were using laser to superheat and destroy pest with the aquarium, were subject to the cooling effect of the surrounding, moving water.

Planula - One of the primary pest being targeted is a species of cnidarain called Aiptasia. When attacked, it can release free-swimming larva called Planula. If not destroyed, these can go on to create many hundreds (if not thousands) of new pests. In theory at least, we want to generate the maximum heat possible, in the shortest time possible to destroy any Planula released.

Transparency and colors resistant to laser - Some of the pests being tested seem more resistant to destruction by laser - especially the 700~1000mw 445. These include Xenia, a much lighter (almost white colored) soft coral that is very fleshy and seems to recover from even extended lase sessions.

Use in destroying blue/green algaes - Many algaes also seem resistant to laser destruction. While the sizzling and popping sounds are easily heard during lasering - they seemingly are unaffected.

Perhaps the 405 spectrum would prove more efficient? We've obviously got a lot to learn about the application of laser technology for marine aquaria use.

Thanks much for your help!
 




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