The first thing is as you found out, you can't trust an LFS right off the bat because of this conflicting info from the two stores. When you bought the bio-spira, you should have also bought the test kit so you could see for yourself how your water was progressing. I'm not really versed in Bio-spira, I went with fishless cycling which I am assuming takes a bit longer than the Bio. A lot of people rave about the stuff and I assume it's a great product however, it is limited and it wasn't available when I needed it. As you've learned with the LFS, don't give them too much of your dependency as a lot of times, they can lead you on a wrong path as you have discovered, so with the new ownership of fish, this site can help find you a LFS that can be beneficial to you and those that are out for your money. Onto your problem, you can't really do anything until you figure out what exactly went wrong. Your first step is absolutely right, get the test kit. Find out exactly what your parameters are and work from there. Your adding the biospira might have done some good after all, but you can't know until you test the water for yourself. You'll need to read the cycling sticky and proceed along there. The LFS may have told you your water was fine by indicating there was no ammonia at the time as you just dd a water change but did he also check for nitrites and nitrates. If he had, he surely could have recognized whether your tank was fully cycled. Your tank would need to keep the same parameters daily, thus being stabilized. Now, for the frogs, I would do another water change, perhaps a 50%, depending on the water conditions and don't forget to use a conditioner/chlorine remover and follow the cycle sticky as mentioned and go from there as well. Note that you will need to perform weekly water changes as opposed to hourly changes once your tank gets stabilized. Your biggest thing is get that kit and work from there.