African dwarf frog questions? answer please?

You need to specify how big your aquarium is... you could be thinking of overstocking it. I'm also pretty sure that guppies need to be in groups and that it is stressful to them to be kept alone. The ADF will get along with guppies and cory cats. Blood worms are a favorite of ADF's. I kept mine at 70-80 degrees when I had them. To float them, you just place their bag in the aquarium and let them sit there for about 15 minutes (until the water temperatures are the same) and them pour them in. Good luck!