Giant Waxy Monkey Frog help.

[Diver]

Yes, true and I do breed my own roaches, what I meant was that apparently the malamoeba issue is common and not anything that makes frogs sick. I'm told by the guy at one of the local stores I deal with that they test their animals very frequently and these malamoebas show up sporadically and it's just an accepted thing. It's not all the time and the effects are limited to the feeders being a bit less nutritious due to reduced gut loading.

To summarise where I think I'm at with these frogs:

Bought them knowing they were wild caught and therefore possibly issues. Being completely unfamiliar with this species have tried to provide best possible conditions and confirm whether exhibited behaviour was normal or not. Evidence appeared to show stressed but otherwise healthy bar first individual which died a few days after purchase. Second fatality and symptoms of remaining individual point to sickness/disease present. Remaining individual has been treated for bacterial infection and parasites and fecal exam has confirmed no parasites present.
So, I think either there was a bacterial infection which has now cleared up due to the course of Baytril (there has been no recurrence of the nasty looking symptoms pictured above) OR there's a viral infection OR there's a fungal infection.
I'll talk to the vet tomorrow to see what tests are possible, I guess there's obviously Chytrid (but if Chytrid could he still be in relatively good shape after the three months he's been in my care?)
Any other suggestions or anything I've missed as always very welcome!