Nutrient deficiency maybe

Outdoor grow
-Sunshine mix 4(added worm castings and extra dolamite lime to help buffer ph)
-(Flora nova grow)for nutrient, At half the recommended dosage, only fed twice.
-Alternating between plain water and nutrient feedings.
-plants are outdoor, but put inside at night.

  • transferred into 5 gallon fabric pots, plants are 10-12 inches tall.
    It seems to be moving up, mostly large fan leaves, new growth is fine for now, going to water tomorrow, wondering if I should add nutrients, or just ph water at 6.5, have never used more than a 14 the recommended amount per litre, could that be a problem? any advice would be great, thank you.