Good deal yeah just feed his schedule and you'll be fine.
I always go with a promix blend until this time I'm running coco. But I prefer soils with 0 to no nutes. Now that I hear your soil I would be VERY weary of going to 2ml/L the
OF has nutrients and you cannot control how much of that your plant is getting on top of what you are feeding. Just take it easy
You do what works for you but in the future look into a medium like promix. You can use the feed schedules that are out there for AN and you know exactly what they are getting, at what quantity and when. This give you total control and when you have ANY problem running AN and promix it's easily solved and there's NO mystery of what's in the soil before hand