Quote Originally Posted by dougefresh
Thanx guys

So when I get this H2O2, how do I apply it to the water. The buckets I am using are 2 gallons each, how much am I supposed to use per gallon and when do I put more in etc..
Before you use hydrogen peroxide, you need to know all of the nutrients you are using. Many nutrients and additives have beneficial bacteria that are killed off by the extra oxygen.

I would recommend cleaning out your system and then using a product like Botanicare's Hydroguard.