Okay lemme me remember some russian here lol my russian is pretty rusty, sorry, I tried and it is translit... So.... Hope you get it.

juri, Pacmanu nuzhno nemnogo druguju dietu, pojmanije liagushki = parasiti i vizmozhnije bolezni, moreprodukti soderzhat mnogo soli. Ja neponiala eto ti exsperiment delaesh ili chto?

oh gosh... Autocorrect is killing me... I just tried to say wild caught frogs are all full of parasites and will infect your frog. They are also possible carriers of all sorts of diseases, including chytrid and ranavirus, both of them will kill your frog if infected.
i would never dream of getting wild caught frog anywhere near my collection without 2-4-6 months quarantine, testing for rana and chytrid, treated and getting full bill of heath.
seafood has high salt content, feeding a prey that is too large will lead to all sorts of digestive problems and can subsequently kill your frog as well. Having said that I wish you and your frog all the best