Is this Mag & Cal or ? deficiency?

[Happy Retiree]

ocean is awesome but it is hot and stays hot. you dont want to add nutes to that except maybe bb and some cal mag if you needed it for a good while. anything else and you might as well take a blow torch to them.

So how can it be awesome & HOT at the same time? Maybe it's awesome for tomatoes but HOT for cannabis? It says not to add nutes for 3 weeks right on the bag. Would that suffice? What is the definition of HOT? What do you recommend in lieu of Ocean Forest?