Try to avoid miracle grow, while it’s amazing for tomatoes and peppers it is far too hot for cannabis, every time you water you’re letting the fertilizer in the MG release and it’s much too hot for young seedlings
MG is a time released fertilizer making it difficult to control how much you’re feeding them and when, other soils like the Fox farm lines are better suited for cannabis because you don’t need to add nutrients till weeks 4-6.
There are growers here who have great success with miracle grow, I am sure we can find one and get em in here