Hello and welcome to FF! I recommend either Seachem Prime or ExoTerra Aquatize to treat tap water. Frogs do not need a stress coat and myself recommend stay away from any conditioner that has aloe vera due to the chemical binders in it.

You can feed your frog locally available live foods (black worms, daphnia, bloodworms); frozen foods (same as for live); and quality frog pellets. Stay away from any freeze dried foods because they can cause digestive issues. You can find more care info in here: http://www.frogforum.net/care-sheet-...warf-frog.html. Good luck !