HELP! Leaves of Yellow

[Poisonmp]

I have my plants in 30 gallon geo pots, E.B. Stone 420 recipe soil, Cal Mag plus as nutrients, and outdoor. I’ve topped a few, trying to learn everything I can since it’s my first real grow. The weathers been 90’s in Northern California. I water every two days with nutrients. I start by watering one gallon then waiting 20 minutes before adding two gallons with 3 teaspoons of Cal mag plus each plant. I’ve began noticing yellow leaves at the bottom, I’ve read usually means lack of nitrogen. I need opinions and advice. Thanks in advance

[crucialbunny]

I would suggest getting those bags off the ground. You're giving a lot of water so good drainage is going to be key to healthy roots. I have no experience with the soil you use but it seems like with 3 gallons of water you may be washing out nutrients. I'm in Southern California and these high temperatures recently are keeping me on my toes monitoring water needs. I just gave all mine a long drink of banana tea this morning along with their regular watering. Overall yours look well and I would just pluck the yellowing leaves that aren't adding to the health of your plants. Looks good