Much better results with a scientific name, thank you. This link takes you to their AmphibiaWeb page and can see there that these frogs are "Nocturnal, appears soon after sunset; during day hides under stones, logs, piles of vegetation, holes and crevices among stones and in ground. Once a suitable place is selected, it is permanently shared with several toads." So, sounds to me you can keep together as long as similar sized. Also, the article has lots of environmental data that can help you provide for their proper needs in enclosure. Good luck !