People, Take a deep breath.
We need to back off a little bit here.
And let cooler heads prevail.
Rob came here for help not beratement.
We all agree that the frog is ill and needs help.
And I will agree that larger accommodations are in order.
And adding any drugs or chemicals is ill advised especially since dosing would be very difficult giving the
small volume of water. What kind of salt are you using , If it is iodized table salt. Stop I have always heard that is really bad to use iodized salt in aquariums.
I totally agree with Carlos,
I would first recomend that he take a sample of the water to a local fish store and have it tested by some one
that has done tests many times. (Rob if you see them use test strips and not small bottles of reagent to do the testing go to another store.)
And see if the problem is being caused by a water quality issue.
Until you get that test I would cut back on feeding by 1/2 until this issue is resolved.
Is the frog eating ok.
And please answer Carlos questions that will help us understand what is going on.