FFOF question, help plz

Im gonna be transplanting soon, and the question is - If im transplanting to 7gal pots using FFOF as the medium with just some perlite and mycorrhizae mixed in, when would you suggest I start giving nutrients, I've heard 2 weeks and I've also heard a month.. I know I need to watch my plant to see if there are signs of defficiency but I would just like a good estimate so I can have an idea of how to plan my grow. Thanks guys.

ps they are photo fem seeds.

and please dont respond with your opinion of the soil, i really dont care.

I’d start at 2-3 weeks, I’ve grown in FFOF for ten years and that seems to be about the time, but, start slow for the first couple feedings, like 50%.

Phytoplankton said:

I’d start at 2-3 weeks, I’ve grown in FFOF for ten years and that seems to be about the time, but, start slow for the first couple feedings, like 50%.

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thank you kindly that's exactly the kind of answer i was looking for.