Hi there
Smaller rana species will most likely be much easier to take care of.
It will be happy in a 10 to 15 gallon tank with a large water portion
with cork bark and a filter. The tank can be divided by sloping a
piece of cork bark in the center of the tank with silicon or wedged
into place. His land area can have soil without vermiculite or
pesdicides and insecticides, You can use live or fake plants
and a hide, keep the frog near 75 degrees and feed small
dusted crickets daily to every other day, if he dose not
get use to captivity, its best to let him go.