I was using AN nutrients at first. decided to go with cocco, bought the nutrient Canna, and realised I would be watering twice a day. Changed my mind and used the nutes on this grow, and they EXPLODED with growth. GobsmackedNo worries dude . "PSM" per square meter. For a new grower 16 is putting others to shame who grow fewer and are not newbies. Lol.