First off, if the H2O2 was doing such a great job of "jacking up" the slime then you would not be posting of having bad slime IMO. There are alot of one dimensional people on here that think one way is the best way without ever giving other options a try. I have never used H2O2 and it's not because I can't afford it. Money is not my issue. It's more of a preference. I have googled and searched around and have not found anything or anyone that has had any negative effects from using bleach in small amounts. People have their opinions and opinions are like assholes. Everybody has one. Go to a few threads and read around and see how many other people have tried the bleach and it killed their slime. It's not some deadly killer like some may think. Just trying to help you out. Good Luck!!