For a few great beginner tree frogs, White's tree frogs (L.caerulea) and Green tree frogs (H.cinera) are at the top of my list. Two green ree frogs can be housed in a 10 gallon terrarium and one whites can be housed in a 20 gallon terrarium. Whites are usually $20-$30 and greens are usually $5-$8 im not sure how much it would be in rands or the frog's availability, Good luck