You’re going to get all kinds of answers to that question I use it all the time I use nothing else and I’ve never had a problem just don’t give it any food for at least 3 weeks
These plants at link are in ffof and have been getting GH floral 3 pack (1-1-1) at 20% since they went into the soil
I’m not recommending this, this is just an experiment but what I’m saying is it’s not too hot, hope this helps