Ozone

[Tarolisol]

I am also thinking about using ozone. I have beed told that it dissapates (sp?) really quickly in saltwater and will almost never make it back to the main tank so it is very diffucult to harm any organisms in the tank. Also people say that the cheapest way to go about it is to use the ones that are install in pools and spas. Im not really sure how poisionous it actully is since i have on in my hot tub and i can put my face right infront of the outlet without any problems.