One piece of info I forgot to include is salt. I add one teaspoon of salt per gallon of water. I find that this small amount of salt is a great preventative for many pathogens. I haven't had any issues with fungus or bloat. I also noticed decreased mortality rates in tads after adding salt to their tanks.

I use instant ocean salt. I prefer marine salt. Others use water softener salt or "aquarium" salt, but these only contain sodium chloride. Marine salt is a mix of many different salts and trace elements. I think these trace elements are very beneficial to our frogs.