Gelato grow

Hi all this week's been good no problems at all I've added some pk and Canna boost today as it's week four as of tomorrow . I've never used Canna boost before so hoping to see some good results altho I won't have anything to compare it too untill next time anyways . The plant on the left has picked up and turned a little greener with the leaf problem sorting itself out .not sure if it was the cc silica I put in but it's doing goo so far . On the other two they are rocking away even starting to see the tricombes starting to develope on the leaves as well . Untill next week