first time grow feeding advice needed

[Khush1992]

Hey guys ill try and keep this as short as possible. My setup consists of two 400 watt hps lights with five gallon fabric pots with a coco perlite mix. i plan on growing 6 autos.The nutrients ill be using are canna coco a and b with supplemental nutrients such as calmag, silica, and rhizotonic. The tap water here has roughly 140-170 ppms. As a first time grower ive read as much as i can before coming here and the vast amount of information is a little confusing to sift through. With that in mind i had a few questions hopefully some of you can help me with. What are the ppm ranges from seedling to harvest i should be aiming for generally as well as the amounts of each nutrient i should be giving at various stages. As well as this when i prepare my coco by buffering with calmag can I use tap water and then ph the water, water the coco and measure the run off ph to make sure its between 5.8-6.3. Also when planting the seedling should the coco contain any nutrients or should they be given the nutrients after 10-14 days and only receive water initially. Lastly what supplement can any of you recommend for boosting yields in the flowering stage as i only have base nutrients in the flowering stage. Guys sorry for the long rant but i hail from a place known for some of the purest and strongest hash worldwide (afghan, tirah valley), however as of late most of the stuff is heavily contaminated with all sorts of ridiculous additives and ive had to give up smoking altogether and have had to invest in my own grow so any help is greatly appreciated

 

[troutman]

I like using bone meal, fish emulsion, and bat guano is small amounts.
I'll also use some Epsom salts and Dolomitic limestone from time to time.
I stop feeding several weeks before they finish to get clean buds.
Try to not overfed as this causes more problems than anything else.