not been a good grow. but it's ok. all part of learning process. i think the soil i used this time is not good. but one of the gals died. she sprouted late and slow growth and just never bounced back. probably overwatered as well. im not sure. but its ok. 2 of the gals doing well. another 2 just kinda slow.
If ur PH is really 7 u should try to lower it to anywhere between 6 and 6,5. Do a flush with 6,5 ph water untill the run off water says the same number. Let her dry out for a few days after that and then give water with a tiny bit of nutrients. She can still bounce back π