Katrina

Many yalow leaves, not sure what's happening, I give nutrients for the last 2 weeks. I'm thinking maybe is a lockout but whit organic nutrients...not sure. Maybe I water to much? Is running off a bit of water when I water maybe is to much water, should I have a runoff after watering? Is not much 50-100ml, but is getting back in. The runoff ph is 7,5 and I water with 6,5...