UPDATE:
Main tank- successful! Only one casualty- one african dwarf frog didn't make it, but he wasn't looking good when I started the blackout. So 1/30 something ain't bad! The tank is back to its pristine self!
Fry tank- mostly successful. No casualties, not even a single fry was lost! HOWEVER- I see ICH spots on 3 fry. :/
How would I treat fry for ich?
I'm preparing to do my post-blackout water changes right now. I have the tanks uncovered, but can I safely turn the lights back on?
Thank you everyone for all of your help!!