Hi everyone i am new to the grow scene, basicly just wanting to get any feedback or helpful hints as possible.as of right now im using just a "basic" system. 1 light more coming asas as plant matures. My plants have been in soil for 5 days so far.they are starting to grow second set of leaves. How long should i wait before i black them out to start the flowering phase, ive heard around 10 to 12 inches. I will update info as plants grow. Also is it ok to use a Fertilizer mixed in withwater such as miracle grow etc without changing soil or should it be changed?