The proper name for this species is Ranitomeya. uakarii. This is a small thumbnail frog that gets no bigger than about 1". It used to be called Ventrimaculatus or vent. A Tinc would be a giant to this little frog and thumbnail frogs are not for beginners. I have raised dart frogs for years and came home to a dead R. amazonica today, I am very sad not only are they very expensive but beautiful also and I don't want you to have to go through this by mistake. If this is your first dart frog you should look for a D. auratus, D. leucomelas, A. galactonotus, one of the bigger species that are more forgiving. You also should not mix species of dart frogs at all. This may all sound a bit harsh but I want you to start off on the right track. Please keep asking questions.