reduced

I took a look but couldn't find any information on how to test to determine how much of the provided nutrients are actually being used by the plant? Is there a reasonable way to do this? Also when upgrading to a much more powerful and intense light does the nutrients provided get reduced? If so...

I've ran as low as 9/15 in the past but for this grow I'm using 10/14.. I'm really surprised by the close mindedness of a certain member who acts like a child and claims to be wearing big boy pants.. so this grow is for you... I'm stopping my other journal for now ... the set up is a...