Lasering pests

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I recently purchased the laser below after reviews by Melev:

5MW High Power Blue Laser Pointer Pen Burn Visible Military 445nm Visible Beam Sliver - intl

I will post about my experience with it for destroying pests.

Firstly, I bought extra batteries as recommended as they don't last long.

I received the laser and followed the safety guidelines :
Always wear the glasses.
Keep the batteries separate from the laser when storing.
Not lasering with others in the room.
Be very careful of hotspot reflections
Don't laser fish!

I cracked it out of the box and cautiously attacked my first pest, a small aiptaisia, I found quickly that the focusing point is very narrow for it to be effective, however once dialed in the burning popping and crackling started and the aiptaisia was fully collapsed and in serious trouble in 30 seconds. I started with the tentacles and then moved to the mouth and foot. You do need to get all parts of the anemone if you dont want it to come back. This can take up to 2 mins of carefully focused lasering to be effective and kill in one application. If you leave parts of the anemone uncooked there is a strong chance it will grow back.

An observation is that when the laser is hot or feels warm in you hand (over 2 mins of use) it seems to work better for me. I don't ever use it for more than 2 mins in one spell. I think it could be damaged. Batteries seem to last 2-5 mins before a charge is needed.

On to the majanos, they are more tricky as they are generally more sturdy and can retract into a hole. However the an be destroyed if they are not in too tricky a location but will take several applications, up to 10 I would say and if any part of them is left uncooked they will come back.

The laser also has been effective at killing both brown wafer algae, bubble algae (to a certain extent and it also damages corals and coraline algae (you can write your name in the coraline algae!).

The other thing I really enjoyed using it for was destroying a whole raft of unpleasant ricordea Yuma that I could not manually remove. I simply parked myself by the tank and burnt then off one by one. I only do one or two at a time and revist them if not fully killed. The good thing about ricordea is they don't retract int a hole so can be fully attacked. I did all this in a fully functioning SPS tank and have had no adverse effects to corals. In fact cleaner shrimp, peppermints and my goldflake angel have all been observed picking on the cooked pests.

Any questions please ask.


 
Could this work on zoas that are spreading too much?
 
I theory yes, I think there could be significant issues with Palys and have not tried it, nor want to, for obvious reasons.

When I got rid of the Ricordea Yuma and the majano, there was some activated carbon running which i would suggest is prudent.

I have inadvertently zapped some brown zoas that were close to a majano with no ill effects to the tank...only the brown zoas, which were not happy.

Because zoas spread as a mat (single organism) you could certainly zap the ones on the edge to limit/contain the spread.

If you think about it zoas often melt away in less than ideal conditions in many peoples tanks and the tank is unaffected, as they melt away they must release the contents of their bodies into the aquarium water, albeit over a slower period of time.
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

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