Lasers for my tank!

Discussion in 'Equipment: Setup and Discussion' started by RSnodgrass, Mar 17, 2019.

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  1. RSnodgrass

    RSnodgrass TCMAS President
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    So I've been doing some reading and bought a 5.5 watt cnc engraving laser to nuke pests in my tank. Currently it's little star fish but most accounts are about aptasia. I also wanted a plug in version since the batteries don't last long.

    One I've got comes with a beefy heat sink and I added a mini tripod to hold it steady. It's also able to be focused which is apparently very important... as well as proper protective eye wear.

    Muhahahaha!
    [​IMG]

    Melves reef had a good video about it.
     
  2. OP
    RSnodgrass

    RSnodgrass TCMAS President
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  3. KJoFan

    KJoFan I contributed!
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    Come try it out on my aiptasia. I just shot some up with lemon juice today but see several are popping back up already so clearly I was not precise with my syringe. It's way harder than it looks!
     
  4. DarkSky

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    I have a 3 watt laser I've used before, works to kill things, but be aware that it is very easy for your laser to reflect off of something and get you in the eye, which will quickly cause a permanent blind spot in your vision. The yellow safety glasses do next to nothing to protect your eyes, you'd need something like welding goggles. Treat it like a loaded gun because that's how dangerous it is.

    If you kill aiptasia with it, it just causes them to spread babies everywhere as they die. But it is fun to watch them sizzle and pop.
     
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    RSnodgrass

    RSnodgrass TCMAS President
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    Good to know... Melve was saying he hasn't seen the baby issue but maybe his peppermint shrimp eat the small ones.
     
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    RSnodgrass

    RSnodgrass TCMAS President
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    I do have specific safety glasses for the nm of laser being used but non the less I don't think that helps in a direct hit situation.
     
  7. Gary

    Gary Started in '96
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    I used to design laser engravers for credit card machines. We'd engrave the characters on the cards and passports. Anyway, this is some dangerous stuff for your eyes! Be very careful, even reflected laser light can severely damage your retinas forever.

    Joe's Juice sent me some product for a video. I'd be interested in filming your attempts with the laser and do some comparisons. I only have one mojano in my smallest Clownfish tank. If anyone in the club wants to have their tank featured, and get some aptasia eliminated at the same time please let me know.
     
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    RSnodgrass

    RSnodgrass TCMAS President
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    I think I'll make a "cone of silence" like a dog wears to go against the glass to and prevent any reflections.

    *if it starts in fire I'll know there is a reflection lol
     
  9. Fishfoo

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    I bought the same one Melev had and it didn't seem to do much for me personally. Aptasia eating nudi's were the solution for me.
     
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  10. KJoFan

    KJoFan I contributed!
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    I considered the nudi route for my handful of aiptasia but find it hard to justify $100+ on something that will inevitably die. Plus, some of the aiptasia are huge. Will the nudi’s eat those?


    Sent from my iPhone using Tapatalk
     
  11. Fishfoo

    Fishfoo I contributed!
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    I guess it all comes down to if you can live with seeing them in your tank or not. Some don't mind it. Others (myself included) can't stand seeing them pop up everywhere. These guys ate every last one that was in my tank and I hardly ever saw them. I was aptasia free for 6+ months until I unfortunately introduced a coral that I later found out had one on it. Will be ordering more once they get out of control again.

    I didn't have extremely large ones, but the bigger penny sized ones in my tank were eaten. I think they do a "group attack" on those
     
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    RSnodgrass

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    It has arrived, I hope to not see any of you in the ER!
    I did mount it to a camera tripod as I don't want to deal with it moving.

    Maybe I should mount a red dot scope or laser pointer to it as well...
    00100lPORTRAIT_00100_BURST20190401192142288_COVER~3.jpg
     
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  13. Fishfoo

    Fishfoo I contributed!
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    Wow that thing means business!
     
  14. dougers31

    dougers31 Senior Member

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    What if you attach that laser... To the head of one of Riley's sharks?!?
     
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  15. DarkSky

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    [​IMG]
     
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  16. OP
    RSnodgrass

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    Got my laser working after buying a bigger power supply and verifying my goggles are in fact protective.
     
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    RSnodgrass

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    Two developments, one... after watching some laser safety videos I ordered reputable laser glasses. They are supposed to be marked on the glass what laser specifications they are for. The ones off Amazon listed nothing... more of a 'trust me' which I wasn't going to do.

    Second it can pop bubble algae with a little effort!
    MVIMG_20190406_153040~2.jpg

    Don't think I'd use this without certified glasses... there is a fair bit of reflection going on and it's not enough to burn something but I can't image it's good for the eyes.... it's still quite bright based on how much my shirt lit up.
     
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  18. OP
    RSnodgrass

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    Well a few observations...
    1) Not all fish are scared of lasers and the sound of frying bacon. Best to do this when fish are sleeping.
    2) It does work and you can visually see the water boiling where it hits a surface in a matter of seconds giving the faint bacon frying sounds. Thus a stand is really a waste of money.
    3) It does not allow for distance focusing because the lense is meant to be on a cnc machine inches away. That said it can engrave steal so it still seemed effective at 14"... at least there was no movement after 45min at that distance.
    4) There is ultimately no way this is effective for this particular pest because they populate so quickly, there are so many crevices in the tank, etc. You could easily spend hours and a week later wouldn't matter.
    5) It's still really fun and I'll be using it for plenty of other coral control and out of tank projects. Coral example would be and encrusting monti that's not removable from the tank and now I don't have to try and smear kalc paste haphazardly in the area.
     
  19. Leicester56

    Leicester56 I contributed!
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    The shot of that laser in action is impressive! That being said, I truly believe nudis are the way to go. I placed 6 of them in a 58 gallon tank riddled with Aptasia and they completely wiped them out. Totally worth it. The only bummer is that they all die off once the aptasia is gone.
     
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  20. OP
    RSnodgrass

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    I did use this on my monti after posting... made really quick work of it and was precise.

    I wonder wonder if it could be used to frag... basically cauterize where the cut will go. For that matter to isolate an area where tissue is receding without actually cutting anything.

    I'm going to try that on my stylo.
     
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