I was trying to be helpful.
The frog you posted is an edulis, not an adspersus. The feeding response from edulis or dwarf pixies is much less than that of an adspersus. A temperature drop could have turned him off from food as they have given me trouble with feeding in the past.

You are from Mass. correct? im assuming u purchased the frog from either the white plains reptile show or the hamburg reptile show. ( I am from albany, NY). Vendors at these shows will sell you "African Bullfrogs" with out specifying what species its very common I see it all the time, as I vend at the PA show.

Regardless Hope everything turns out well...