Completely forgot to think about an air Stones thank youtetras can be nippy sometimes, right? and adfs can mistake others as food and will bite each other, but i've never seen them do any real damage.
pet store frogs these days, from what i've seen from all the threads on this forum and the frogs i've tried to get (all 3 died and killed my 4th that was exposed to it), are very susceptible to illness such as bacterial or fungal infections (mostly chytrid). one of your new frogs could have carried something nasty from the store. either it took over overnight or he got a wound and made him more vulnerable to infection.
i'm not sure if pimafix is a great choice for animals with lungs such as adfs because of the oil in it, but you can try it. plus adfs have no scales for protection, so they absorb medications much more easily through their skin. not a long of meds that are fish-safe are frog-safe, unfortunately. it's important to keep an airstone in with him for added aeration and help him easily reach the surface for air.
Just dropped it in there Stone he's dead well thanks for the helpCompletely forgot to think about an air Stones thank you