Flush it until water comes out of the bottom and then let it sit until the soil dries out. From my experience and looking at posts on the forum, the only miracle with miracle grow is it makes all the lush vegitation disappear. I don't grow in soil inside, so I can't really give you a recommendation on how much of that stuff to use, but I know that fox farm nutes are really popular amongst soil growers. I hope that is a little help to you, and I wish you the best of luck in nursing your girl back to health