No! I have kept frogs for a few years now, depending on species they can be very toxic, and if there not the toxic ones they can still make your other fish sick because they are bacteria prone. Also tad poles are really hard to keep alive they are very picky. Not only for your fish, but for the tad poles I ask you to choose a different bottom feeder. Also on that note tad poles prefer to eat off the waters surface from my experience with over 4 different species