Hello, Hope it is ok if I join in on this thread .
I have lost a few ADF frogs that way and never figured out what the
cause was. I find that they do well on freeze dried tubifex worms,
TetraMin Tropical tablets and a treat of the freeze dried blood worms.
They will also eat some algae wafers as well. My frogs like to float
and it seems to be normal behavior as well as going around the tank
along the bottom..

Sorry about the loss of that frog. Hard to treat them when something is
wrong.