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! Melves reef had a good video about it.