my plants r 7 weeks old. whats the ph supposed to be at this stage?

there in soil the bag said enough food for only 2 months .its almost up, time to get nuttrients.
highweedskunk Reviewed by highweedskunk on . 7 weeks my plants r 7 weeks old. whats the ph supposed to be at this stage? there in soil the bag said enough food for only 2 months .its almost up, time to get nuttrients. Rating: 5