Ranitomeya sirensis 'Highland'
This species of Ranitomeya is one of the larger that I work with although they are still quite small they are a little less than twice the size of some of the R. imitator that I keep. This frog is definitely on the shy side but I still see them quite a bit and in my experience all Ranitomeya are a bit more shy than the larger Dendrobates.
These frogs are truly fascinating to keep as they are great parents and quite fun to watch as they transport tadpoles and provide care for them.
The frogs available will always be near adult size as Ranitomeya are such a small size full grown that selling froglets/juveniles just wouldn't make sense.