Via Carlos: Please do not start a new thread when dealing with previously described health issue/event. It makes following up much harder and could cause the missing of important information .

Lija has given you great help in here. Bottled spring water could be anything that meets city/state codes for human drinking. It could be over-filtered or even have added chloramines. Unless you know exactly how is that water processed; strongly recommend using dechlorinated tap (Seachem Prime or ExoTerra Aquatize work great). More on subject in here: Water: Distilled vs purified vs everything else. Good luck treating frogs !
Sorry about that I've been posting various places because I'm trying to get info to help my frogs and I don't always get replies.... :/ This post was primarily about whether or not the frogs could be housed in a single 10 gal QT tank, though, which is something I haven't previously posted anywhere else. Also you'll have to forgive me if I tend to repeat stuff, I have trouble remembering things sometimes-- old concussion from car wreck with lasting negative results, faulty memory and transposition which is like dyslexia, where I type/write/sometimes say things mixed up vs seeing words and letters jumbled up. Again, sorry, I just want to help my babies get better...