Other than it may not kill the ich, nothing. Any fish hobbyist that does things to rush the process inherently sets themselves up for future problems. You have your mind set and are going in that direction, all the best to you.
Sorry you got off to a bad start with some posters. I hope you won't be deterred from the forums and posting. I don't think you did anything drastically wrong. Believe me, I've done much, much worse, and killed off a ton of fish that way. It's just part of keeping aquariums. I also don't think anyone was trying to be insulting. It is very difficult to read intentions online. I usually use the smilies to get emotions across, but everyone has a different way of doing things. Good luck with your aquariums!In the future I will just treat the tanks. I was aggravated and hasty, so I used h2o2 to kill everything and start over. I tried to explain in a previous comment that I knew it was a mistake, but it was already done. Must've gotten lost in translation. I know myself and if I had waited the two weeks to treat the ich, I would've been too paranoid to put fish back in and inevitably I would sanitize everything, that would have wasted 2 weeks, fish food and etc. I followed that up with "you live and you learn".
I never would have even bothered trying to return the fish. My husband called the store manager. Originally, I was trying to treat the fish with heat and salt. After talking it over, we made the return and decided to steer clear of the temptation, make use of the 10g hospital tanks. The store manager was very puzzled by my plethora of 5g buckets upon arrival.
I am not perfect. I would never claim to be a highly educated person. I do find the way Tifftastic responded towards me as insulting and degrading. All together unnecessary. Especially being I'm posting in the "newbie forum". Rbishop jumping in on the shame train didnt help anything either. Why are people so judgy? Is anything I did truly that "bad". How people can even presume to make negative character assessments over this is beyond me. I am very thorough, i do research. I ask for help. I admit my mistakes and I do learn/move on. I am particularly sensitive to judgemental people. I am human. To error is human, is it not? Fish have feelings? So do I.
I feel bamboozled by this place suggesting it is for helping people with new or rekindled interests in aquaria, when it feels more like a podium for know-it-all types to demean well meaning people. That being said, the road to Hell is paved with good intentions...
However, I have gotten helpful and insightful suggestions here as well. I most likely will lurk and search rather than post and put myself "out there" any more.