I have to call this thread out as BS. Some of you have killed some of your fish. Others have killed all of your fish. While that wasn't the intent, it sure did have these unintended consequences. It's much better to learn why certain types of algae occur and the specific ways to combat them than to find novel ways to nuke the tank.
As a rule, too much light, not enough CO2, and plants suffering nutrient deficiencies will all lead to algae. Thus, the easiest way to limit or prevent it is to reduce light, add sufficient CO2, and fertilize. Keep the same setup and the algae will simply return since the cause(s) were never addressed.
Worst thread ever!