Why do my African dwarf frogs keep dying?

[stirstick]

My question is this: Salt is potentially fatal to aquatic frogs. What is the appropriate ratio/mixture of epsom salts to use to formulate a bath for an ADF? How long or generally what is the process of treating a frog with a salt bath?

Thank you all for all of your help!

Same question, what would be the ratio and exactly what type of salt?