MG can be alright if you know how to NOT over fert/water.
MG is a fairly cheap nut so people tend to over feed with it.
IF you use MG feed at quarter or half strength.
Seaweed wet is about 0/0/0
dried however is like 1/.5/3
It would be much more beneficial to your plants to use a full N-P-K grow and bloom for plants in my opinion.
It could be used alone or with a MG, not sure about the DWC however....
also you mean miracle grow by MG?
TO the original post,
...
Seeking better grow techniques, I look at growing as a Lab in Science Class.
Take notes of all growth, good or bad its still an observation.
Take pictures weekly as a visual observation.
Record everything you do to your grow room weekly if unable to daily;
things like...