Hello!!  Three years ago I bought four such frogs.  Now they have multiplied and dominate our little ponds.  They croak their distinctive croaks and make the place sound like some primitive swamp. Now what?  Will they simply multiply until they fill the place!  Oh, my, I hope they survive.  If they double in numbers, then what?  A mystery of life.  I will try to remember to keep you informed. In the meanwhile, let the croaking continue!