Although we recommend the plain, regular, unscented bleach w/o thickeners (the thickeners make it "splashless"), using the splashless on a "one-off" basis like this is not the end of the world. Last year I mistakenly picked up a bottle of the splashless Clorox that was mixed in with regular Clorox. Didn't realize it until I got home. Did not want it to go to waste, so I used it partly out of curiosity. The main side effect is the temporary bubbles that (in my case) disappeared after about 10 minutes or so. Aside from that temporary effect, it caused no other issues. However, I went back to using the plain bleach simply because it has one less additive that I don't need anyway. Now, I'm a bit more careful in shopping for bleach to make sure I get the plain version.