Hi I just got 2 young parrots & after 2 days have noticed marks on them which is possible illness or disease , really want to treat these guys but don't know what I'm treating them for , had a spike in ammonia & nitrate after adding them to the tank of 0.25 , done a small water change of 20% all other fish in the tank seem fine no sign of stress , the orange parrot has red & black in front of the gills , the black has a white patch in the same place , iv been told it's ammonia burns off one person then told its disease off another !! HELPPPPP PLEASE !!!