I hear someone is using a [URL="http://lazerer.com/cyber-445nm-1w-focusable-blue-laser-pointer"]1W laser pointer[/URL] to kill unwanted polyps in his DT. Has anybody here ever heard of somebody using a laser on their tank? Can you explain how it works? Here is the video I found on youtube: [ame="http://www.youtube.com/watch?v=Cbk7mA5PuAQ&feature=player_embedded"]http://www.youtube.com/watch?v=Cbk7mA5PuAQ[/ame]