starter is not rising

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Hi, I’ve had problems trying to create a sourdough starter.  I'm new to this.  I most recently used all-purpose unbleached flour.   I kept the temperature at 80.  When adding water it was also at 80.

 On day 3 I started removing and then adding 60 grams of water and flour.  There was some bubbling but no significant growth in volume.  Around day 5 some hooch developed.  I read that this meant it needed to be fed.  The following day, I fed the starter in the morning and at night.  There was some growth, but did not double and the smell was not very strong. It did not float

A couple of questions – is AP white unbleached flour the best to use or should I consider another?  Also when feeding twice a day, is it correct to remove the same amount of starter that I’m adding with fresh flour and water for each feeding.  I’m wondering if I’m leaving enough starter before adding flour and water.

 I’ve got two bread books.  One starts with 60 grams of flour and 60 grams of water.  On day’s three to seven, starter is removed and flour and water is added.  In the other book – it's fed each day, however on day’s 4 and 5 a portion of the starter is added to a new jar before feeding.  Is one method preferable to the other?

 Any help appreciated.

Thanks,

Richard