I had four azureus I raised together in a 40 gallon tank. Once they became mature, I noticed some were hiding more and they weren't breeding. I seperated them into 2 different tanks and they were much happier. I even got luckly enough to have 2 pairs which bred within 2 months of seperating them. I think the tank would be ok for froglets, but as they mature, you will need to seperate them. That is not a very big tank even for a group of social frogs. It is the perfect size for breeding pairs or raising froglets though.