I started flower by feeding alfalfa and added in some cal mag. no other nutes than a little bit of kelp. there is mycelium running very well in my potting soil. next week will start flower nutrients
this week I was dissatisfied with finding so many males. currently I have confirmed 1 shrieker and 1 9 lb hammer female. There are 3 master cookie, 3 shrieker, and 1 9lb hammer left to be identified which leaves 9 plants total left.
If your plants are already at 18in you should switch soon if in a tent. This is because plants will double to triple in size once switched to flower and you need to maintain a certain distance between your lights and your canopy.